Restoration begins with a deceptively simple question: what are we trying to achieve? Until that question has been answered, no cleaning method, adhesive, replacement part, retouching technique or structural repair can be judged appropriate.
A treatment may be technically accomplished yet still be a poor restoration because it pursued the wrong objective. A toy can be made brighter but less authentic. A poster can be made visually complete while losing printing evidence from its edges. A ceramic can be reconstructed so convincingly that future owners cannot distinguish surviving material from the restorer's work. Conversely, an object may remain visibly damaged yet be successfully treated because it has been stabilised, made safe to handle and protected from further loss.
The central principle
The objective of restoration is not to discover how much can be repaired.
It is to identify the least - and most appropriate - change required to preserve, understand, display or responsibly use this particular object.
1. Define the destination
An objective is a result, not a technique
A restoration objective states the condition or capability the treatment is meant to produce. It explains why intervention is justified and sets limits on how far it may go.
Actions without an objective
“Clean the cover.”
“Replace the missing wheel.”
“Repaint the figure.”
“Repair and improve the box.”
These phrases name proposed work but do not explain the problem, the intended result, the preservation boundary or the test of success.
A defensible restoration objective
Stabilise the lifting printed surface around the box corners so the lid can be opened for examination without additional loss. Retain all surviving printed material and ownership marks. Do not reconstruct missing artwork. Repairs should be unobtrusive at normal viewing distance, identifiable on close inspection and fully documented.
The five parts of a strong objective
1. The problem
What instability, limitation or interpretive difficulty is being addressed?
2. The intended result
What should be measurably different after treatment?
3. The preservation boundary
Which original features, evidence or alterations must remain unchanged?
4. The intervention limit
How far may cleaning, repair, replacement or reconstruction go?
5. The test of success
How will the collector know the objective has been achieved?
2. The objective spectrum
The major purposes restoration can serve
Restoration is not a single destination. It can range from doing nothing beyond improved storage to extensive reconstruction or return to function. The appropriate objective depends on what matters about the object and what role it must fulfil.
Stabilisation
Move an object from active or imminent deterioration into a condition that can be safely stored, handled or assessed.
•Secure lifting paint without repainting missing areas.
•Support a split box corner before the tear extends through printed board.
•Immobilise a ceramic fracture or isolate an actively corroding component.
Preservation boundary
Stabilisation does not promise visual perfection, normal everyday use or a permanent end to ageing. It controls risk; it does not erase history.
Preservation of surviving original material
Retain the genuine materials and surface evidence that carry information about manufacture, ownership, use and previous change.
•Preserve original coatings, stitching, staples, labels and tool marks.
•Retain annotations, price stickers, wear patterns or documented period repairs where significant.
•Avoid replacing sound original material merely to achieve cosmetic uniformity.
Preservation boundary
Old material is not automatically sacred. A damaging adhesive, unstable corrosion product or incompatible earlier fill may need reduction or removal when retention would cause greater loss.
Structural integrity
Give the collectible enough physical coherence to survive its intended handling, storage, display or controlled use.
•Join broken components or reinforce a weakened fold.
•Support a detached cover or return a collapsed box to a self-supporting shape.
•Use an internal brace, mount or support where it can achieve the result with less alteration.
Preservation boundary
The strongest repair is not necessarily the safest. Excessively rigid repairs can transfer stress into adjacent original material and create a new break beside the old one.
Safe handling
Make the object safe enough to move, examine, photograph or store without placing the object or handler at unacceptable risk.
•Contain loose fragments, sharp glass or protruding wire.
•Remove or isolate leaking batteries and unstable foam.
•Provide a custom tray, enclosure, handling note or restriction on use instead of altering the object itself.
Preservation boundary
The right answer may be a support system rather than a repair. Preventive measures often achieve the handling objective with less intervention.
Visual legibility
Allow the surviving design, image, form or decoration to be understood more clearly without pretending that damage never occurred.
•Reduce disfiguring dirt or harmful distortion.
•Align fragments so the original form can be read.
•Fill or tone only those losses that materially interrupt interpretation.
Preservation boundary
Legibility is not perfection. A poster may remain fully readable despite small losses, while a fragmented figure may require reassembly before its identity is apparent.
Aesthetic reintegration
Reduce the visual dominance of damage, fills or repairs so that the eye reads the original object before the intervention.
•Tone a fill, adjust local gloss or texture, or reduce the contrast of a repair.
•Use neutral integration where the addition remains quietly visible.
•Use discernible integration where work blends at normal distance but is recognisable on inspection.
Preservation boundary
The more invisible the work becomes, the greater the risk that restoration will be mistaken for original material. Illusionistic work demands exceptional documentation and disclosure.
Reconstruction of missing form
Replace absent form where doing so is necessary for support, interpretation, function or a clearly defined display purpose.
•Reconstruct a missing ceramic handle or action figure limb.
•Reproduce a lost box flap, stand, dial or model component.
•Create a replica accessory to communicate the completeness of a set without claiming it is original.
Preservation boundary
Reconstruction requires evidence. It should not turn uncertainty into an apparently authentic fact, and additions should remain identifiable, documented and removable where reasonably possible.
Functional restoration
Return some degree of movement, sound, operation, play or digital behaviour where function is part of the object's identity.
•Restore demonstration movement in a mechanical toy.
•Return a music box or record player to limited supervised operation.
•Preserve software through imaging, emulation or carefully documented migration.
Preservation boundary
Function consumes service life. Full operation may require replacing original parts, introduce electrical risk or accelerate wear. Demonstration, limited function or a surrogate may be more appropriate than regular use.
Historical interpretation
Present a defined historical state, configuration or period in the object's life rather than an undefined idea of how it 'originally' looked.
•Present the object as manufactured, as used by a particular owner, or in a documented later configuration.
•Retain period upgrades or working repairs where they explain the object's life.
•Remove a modern alteration only when the chosen interpretive state justifies doing so.
Preservation boundary
Factory appearance, first ownership, peak use, final operational state and as-found condition are different targets. The chosen date or state must be explicit.
Retention of evidence
Deliberately preserve wear, damage, alteration or residue when it carries provenance, use history or technical information.
•Retain ownership labels, competition wear, library stamps or assembly marks.
•Preserve paint loss that exposes an earlier colour scheme.
•Keep a documented period repair that is part of the object's story.
Preservation boundary
A pristine surface can be historically false. Improvement cannot be judged only by cleanliness, brightness or completeness.
Reduction of damaging previous restoration
Address earlier work that is unstable, incompatible, misleading or actively harmful to the surviving object.
•Remove staining tape or an adhesive that is embrittling paper.
•Replace an overly rigid ceramic fill that is stressing original edges.
•Correct a misaligned join or reduce overpaint that obscures original detail.
Preservation boundary
Later work is not automatically worthless. A crude but documented period repair may be significant, and attempted removal may cause more damage than careful retention.
Display, storage and research access
Prepare the object for a defined setting while distinguishing changes to the collectible from improvements to the way it is supported or presented.
•Use a mount, backing board, internal support or safer display angle.
•Repair catching tears or separate loose components for long-term storage.
•Stabilise an object sufficiently for photography, examination or scientific analysis.
Preservation boundary
Display design or storage support may solve the problem without restoration. Treatments must also avoid contaminating material that future research may need for analysis or dating.
Retreatability and future options
Ensure that today's treatment does not unnecessarily close off tomorrow's examination, correction or improved treatment.
•Choose additions that can be removed or modified without major damage.
•Use compatible materials that age safely beside the original.
•Make restored areas distinguishable and record exactly where they are.
Preservation boundary
Complete reversibility is often impossible. Cleaning removes material and adhesives may penetrate surfaces. The realistic objective is removability, compatibility, distinguishability and preservation of future choices.
Documentation
Create a durable record of condition, reasoning, materials, methods, changes, limitations and future care.
•Photograph the object before, during and after treatment.
•Record previous repairs, removed material and reconstructed areas.
•State what remains uncertain and what future owners should monitor.
Preservation boundary
Documentation is part of the treatment, not clerical work added afterwards. Invisible work without records can create more long-term uncertainty than a slightly visible, fully disclosed repair.
3. Priorities
Put objectives into a hierarchy before work begins
Most poor restoration briefs fail because cosmetic wishes are allowed to compete on equal terms with preservation needs. A hierarchy makes clear what must happen, what may happen and what must not happen.
Primary objectives
Essential outcomes that protect the object or people and cannot be traded away for cosmetic improvement.
•Stop active paint loss.
•Remove or isolate a leaking battery.
•Prevent a crack from extending.
•Make the object safe to lift or store.
Secondary objectives
Desirable improvements that may be pursued only when they do not compromise the primary objective.
•Reduce the visibility of a repair.
•Improve fragment alignment.
•Restore visual balance or limited readability.
Optional objectives
Enhancements dependent on evidence, budget, expertise and acceptable risk.
•Reconstruct a missing accessory.
•Reproduce decorative finish.
•Return a mechanism to supervised operation.
Prohibited outcomes
Changes the treatment must not produce, even if they would make the object look more complete or marketable.
•Do not remove a documented owner's inscription.
•Do not repaint surviving original areas.
•Do not replace sound original components for cosmetic uniformity.
•Do not disguise additions so completely that they cannot be identified.
Collector scenario: the attractive but unstable object
A boxed figure has a split corner, lifting printed paper and several distracting stains. The owner initially asks for stain reduction and a visually seamless corner. Examination shows that the printed layer is actively detaching.
The correct primary objective is to secure the printed layer and stop the split. Reducing stains is secondary. Recreating missing print is optional, and only defensible if supported by evidence and clearly documented. Any process that risks further print loss is prohibited even if it would improve appearance.
The hierarchy prevents the most visible problem from displacing the most important one.
4. Escalation
How far should restoration go?
Think of intervention as an ascending ladder. Each step introduces more material change, interpretive responsibility and documentation. A collector should stop at the lowest level that genuinely satisfies the objective.
Level 0
No intervention
Document, store safely and monitor. No physical treatment is undertaken.
Suitable when: The object is stable, treatment benefit is uncertain, evidence may be lost, risk exceeds gain or suitable expertise is unavailable.
↓
Level 1
Preventive action
Improve enclosure, support, environment, separation, handling or display without altering the object.
Suitable when: The problem can be controlled around the object rather than through direct treatment.
↓
Level 2
Emergency or local stabilisation
Treat only the unstable area or immediate hazard.
Suitable when: Active loss, contamination, a failing component or a local structural weakness requires prompt action.
↓
Level 3
Structural repair
Restore enough physical coherence for safe storage, handling, display or limited use.
Suitable when: The object cannot fulfil its intended role without joining, reinforcement or support.
↓
Level 4
Visual integration
Reduce the visual dominance of losses, fills or repairs.
Suitable when: Damage materially interrupts interpretation or display and the work can be carried out without disguising uncertainty.
↓
Level 5
Partial reconstruction
Replace missing form needed for support, identity, interpretation or a defined function.
Suitable when: Evidence is adequate and the addition can be documented and distinguished from original material.
↓
Level 6
Extensive restoration
Return the object toward a selected appearance, configuration or operational state.
Suitable when: The objective is explicit, the interpretive basis is strong, consequences are accepted and the documentation burden is met.
Preservation/restoration boundary
Doing nothing to the object can be an active conservation decision. Better storage, a custom mount, restricted handling, separation from incompatible materials or a replica used for demonstration may meet the collector's need without direct restoration.
The boundary is crossed when the object itself is physically altered. That does not make intervention wrong, but it raises the burden of evidence, proportionality and documentation.
5. Competing values
Why reasonable objectives conflict
The difficult cases are rarely a contest between obvious good and obvious harm. They involve two desirable outcomes that cannot both be maximised. The collector's task is to make the trade-off visible before treatment, not discover it after material has been changed.
Appearance versus originality
Repainting or refinishing may produce visual unity.
The same work may cover factory paint, printing evidence or signs of use.
Collector judgement: Decide whether visual disruption genuinely prevents understanding, or merely makes age and damage visible.
Function versus preservation
Operation can reveal what a machine, toy, instrument or digital object was made to do.
Operation can also consume worn parts, create heat, stress brittle materials or depend on replacement components.
Collector judgement: Specify whether the real need is demonstration, limited use, full operation or documentation of function without operating the original.
Strength versus compatibility
A rigid join may feel reassuringly strong.
It may age differently from the original and transfer future force into weaker surrounding material.
Collector judgement: Aim for sufficient and compatible strength, not maximum strength.
Completeness versus certainty
A reconstructed component can make an object understandable or displayable.
Where evidence is weak, the reconstruction can convert a guess into apparent fact.
Collector judgement: Reconstruct only to the level justified by surviving material, reliable comparators or documentary evidence.
Cleaning versus historical evidence
Cleaning may reveal colour, image or surface detail.
It may also remove residues, coatings, annotations or use patterns that cannot be replaced.
Collector judgement: Identify what the deposit is and what information it may carry before deciding that it is dirt.
Invisible repair versus honest interpretation
A seamless repair may improve enjoyment and display.
It may become impossible for future owners to distinguish original material from restoration.
Collector judgement: Match the visibility of treatment to the object's role, market context and strength of documentation.
Present use versus future options
A decisive treatment may make the object usable now.
It may prevent analysis, retreatment or a better-informed choice later.
Collector judgement: Where the benefit is modest and the change irreversible, preserving optionality is often the stronger objective.
6. Diagnosis before treatment
Determine the correct objective
A restoration objective should emerge from significance, condition, future use and evidence. It should not be reverse-engineered to justify a technique the owner or restorer already wants to use.
Significance
What makes this object worth preserving?
Rarity, original material, provenance, design, association, completeness, working function, personal meaning and market value can point toward different treatment priorities.
Condition
What is actually wrong?
Separate active deterioration from old damage, dirt from original coating, missing material from deformation, and harmful previous repair from stable evidence of use.
Future role
What must the object be able to do afterwards?
Storage, framing, display, research, photography, operation, play, sale, loan and inheritance create different structural and presentational requirements.
Evidence
What is known, and what is only assumed?
Use surviving material, matching examples, catalogues, manufacturing records, period photographs, technical examination and provenance. Do not fill evidential gaps with confidence.
Alternatives
Can the objective be met with less intervention?
Compare no treatment, preventive support, local work, a replica, a digital reconstruction, a display addition and full treatment before selecting the most intrusive route.
Success test
How will you know the treatment worked?
Replace vague ambitions such as 'improve it' with observable outcomes: no further paint loss during controlled handling, a lid that opens safely, or a mechanism that runs briefly under supervision.
Condition is not the same as diagnosis
“It looks old” is not a treatment problem. The actual issue may be active deterioration, accumulated dirt, deliberate patination, fading, deformation, missing material, an incompatible repair or ordinary age-related wear. Each points toward a different objective.
Observable evidence
What can be seen, measured or documented now?
Interpretation
What does that evidence probably mean?
Collector risk
What could be lost if the interpretation is wrong?
7. Collector applications
The same word - restore - means different things for different objects
Object type, material, rarity, market practice and intended use change the balance between stability, appearance, originality and function. These scenarios show how a defensible objective is framed.
Vintage cardboard box
Split corners, distortion, lifting printed paper and surface wear on a box that still contains its original game or model.
Defensible objectives
•Prevent splits and lifting print from extending.
•Return the box to a self-supporting shape and allow careful opening.
•Retain original printing, wear, ownership marks and surviving board.
•Avoid recreating absent artwork unless evidence and disclosure justify it.
Collector risk
A goal such as 'make it look new' can encourage lamination, overpainting, aggressive stain reduction or replacement of original board - all of which may destroy the qualities collectors use to judge authenticity.
Action figure
A detached original limb, lifting factory paint, a missing accessory and a plastic surface carrying age-related deposits.
Defensible objectives
•Secure original paint and reattach the surviving limb safely.
•Remove only deposits shown to be harmful or disfiguring.
•Create a documented replica accessory if completeness aids display.
•Prevent harmful plastic-to-plastic contact during storage.
Collector risk
Full repainting may create cosmetic perfection while erasing factory paint, moulding evidence and surface wear used to assess originality.
Poster or printed paper collectible
Tears, folds, pressure-sensitive tape, distortion, stains and vulnerable edges or margins.
Defensible objectives
•Stop tears and remove or reduce damaging tape where safe.
•Support the sheet and reduce harmful deformation.
•Improve image legibility while retaining margins, printing evidence and inscriptions.
•Accept creases or stains that cannot be treated safely or form part of use history.
Collector risk
Flattening, trimming, bleaching or visually completing missing print can improve presentation while sacrificing edge evidence, dimensions, paper character and historical honesty.
Ceramic figure or vessel
Broken fragments, old adhesive, glaze instability and losses around a handle, rim or decorative feature.
Defensible objectives
•Join fragments and stabilise vulnerable glaze.
•Fill only where needed for support or visual legibility.
•Tone fills so they do not dominate normal viewing.
•Retain a significant old repair where removal would cause loss or erase history.
Collector risk
An illusionistic reconstruction can be appropriate for display but may make the original-fill boundary unknowable unless diagrams, photographs and materials are recorded.
Mechanical toy
Corrosion, worn gears or springs, fragile paint and a mechanism that no longer operates reliably.
Defensible objectives
•Arrest active corrosion and make moving parts safe.
•Preserve original paint and retain removed components with the object.
•Restore limited demonstration movement rather than continuous operation.
•Replace only parts essential to the chosen functional objective.
Collector risk
A full working restoration may consume original gears, springs or electrical parts through repeated use, exchanging material survival for present-day performance.
Book or comic
Detached cover, torn pages, failing adhesive, rusty or original staples and distortion around the spine or binding.
Defensible objectives
•Allow safe opening without further loss.
•Retain original staples, sewing and binding structure where possible.
•Remove damaging adhesive only when treatment risk is acceptable.
•Preserve annotations, printing evidence and original order.
Collector risk
A neat rebinding or replacement cover can destroy evidence of construction, issue state, ownership and use even when the finished object appears stronger.
Electronic or digital collectible
Failing batteries or capacitors, obsolete storage media, ageing hardware and software dependent on unavailable systems.
Defensible objectives
•Document current operation before intervention.
•Isolate hazardous components and preserve original hardware and software.
•Create disk images, code copies or emulation environments.
•Distinguish original code and components from later restoration layers.
Collector risk
Physical originality and continued operation may not be preservable through the same strategy. Migration can retain behaviour while replacing the technical object that produced it.
8. Market and ownership pressures
Private collectors face objectives museums may not share
Market presentation
A cleaner or more complete object may be easier to display or sell, but the intervention must be balanced against originality, rarity, disclosure and the conventions of the collecting field. Some markets reward polished completeness; others strongly prefer untouched examples.
Completion of a set
A reproduced component can restore the experience or interpretation of completeness without claiming the replacement is original. The replica should remain permanently documented and disclosed.
Personal enjoyment
An owner may reasonably prioritise display, emotional meaning or function. Personal preference can guide treatment, but it must not be presented to future owners as historical fact.
Resale
Work undertaken to improve saleability creates pressure to hide intervention. The proper objective is not to manufacture an apparently untouched object, but to improve it without creating a false impression of originality or condition.
Use and play
Games, toys, instruments and machines may be valued through use. Reproduced components, retained originals, limited operation or a functional surrogate can provide experience without placing all wear on irreplaceable material.
Research and authentication
Collectors may later need technical examination, dating or expert authentication. Adhesives, coatings, cleaning agents and replacement materials can contaminate or obscure the very evidence those processes depend on.
9. Myth versus reality
Objectives that sound sensible but mislead
Myth
Restoration should make the object mint.
Reality
Mint describes an untouched condition, not a visual effect. A restored object may look excellent but it does not regain an untouched history.
Myth
All signs of age should be removed.
Reality
Age is not automatically damage. Patina, wear, fading, repairs and residues may carry evidence that matters more than surface freshness.
Myth
Anything imperfect should be replaced.
Reality
Replacement sacrifices original material. It requires a clear structural, interpretive or functional benefit that cannot be achieved more conservatively.
Myth
A successful repair is invisible.
Reality
Visibility is only one measure. Compatibility, honesty, stability, retreatability and documentation may matter more than concealment.
Myth
The strongest repair is the best repair.
Reality
A repair should be appropriately strong and mechanically compatible. Excess strength can redirect future damage into weaker original material.
Myth
Restore it to original.
Reality
Many objects have several legitimate historical states. The target must specify a date, configuration or interpretation rather than invoke an undefined original.
Myth
Restoration will increase value.
Reality
Market response varies by field, rarity, workmanship and disclosure. Work welcomed in one category may sharply reduce desirability in another.
10. Reassessment
Objectives may need to change during treatment
Treatment planning is not infallible. Responsible work includes the willingness to stop when the object contradicts the plan.
!
Hidden original material is discovered.
!
A supposed stain proves to be an original coating.
!
An adhesive cannot be removed safely.
!
A fragment is shown not to belong to the object.
!
The material is more brittle or reactive than expected.
!
Evidence for reconstruction proves unreliable.
!
Treatment produces an unexpected colour or surface change.
!
Scientific examination changes the object's interpretation.
Continuing merely because a treatment plan has already been agreed can convert a manageable problem into irreversible damage. Stop, reassess, revise the objective and document why it changed.
11. Documentation
Record the decision, not only the finished appearance
The treatment record should make the object's altered history intelligible to someone who was not present. It must show what was found, what was decided, what changed and what remains uncertain.
Record
What it should contain
Significance
Why the object matters and which qualities treatment must protect.
Pre-treatment condition
What is stable, unstable, missing, altered, contaminated or uncertain.
Intended future use
Whether the object will be stored, displayed, handled, operated, sold, studied or loaned.
Primary objective
The essential result that must be achieved.
Secondary objective
A desirable improvement that must not compromise the primary objective.
Evidence to retain
Marks, materials, wear, residues, repairs and alterations that carry meaning.
Intervention limit
What must not be removed, replaced, concealed or reconstructed.
Visibility of additions
Whether work should remain obvious, discernible on inspection or closely integrated.
Materials and methods
What was used, where it was used and why it was selected.
Removed material
Any components, samples, adhesives, coatings or previous fills removed during treatment.
Uncertainty
Where evidence was incomplete, interpretation changed or a decision remained provisional.
Post-treatment care
Storage, handling, operation, monitoring and future retreatment advice.
Documentation becomes more important as work becomes less visible
A repaired object may pass through many owners after the treatment itself has become difficult to detect. Photographs, diagrams, material lists and a plain-language treatment summary protect provenance, support future conservation, improve sale descriptions and prevent restored areas from being mistaken for untouched originality.
12. Specialist threshold
When objective-setting requires professional input
Collectors can define needs and preservation boundaries, but some conditions and proposed outcomes require material-specific examination before any method is chosen.
•The object has active flaking, powdering, corrosion, mould, exuding plastic or another unstable surface that could be worsened by handling or cleaning.
•Treatment would affect original paint, print, coating, glaze, plating, paper fibres, adhesives, stitching or binding structure.
•A proposed reconstruction depends on uncertain evidence or could be mistaken for original material.
•The object contains hazardous batteries, electrical components, sharp fragments, contaminated material or unknown chemical residues.
•A previous repair is strongly bonded, deeply stained, structurally embedded or likely to damage the object if removed.
•The collectible is rare, high-value, historically important or technically unusual enough that an error would be disproportionate.
•Scientific analysis, dating or authentication may be required and treatment could contaminate the evidence.
•The desired result involves extensive repainting, refinishing, mechanical rebuilding, structural reconstruction or illusionistic completion.
13. A practical treatment brief
Write the objective before agreeing the method
1
State significance
Identify which original, historical, functional, personal or market qualities treatment must protect.
2
Describe present condition
Record what is stable, unstable, missing, altered and uncertain without turning assumptions into facts.
3
Define future use
Specify whether the object is to be stored, handled, displayed, operated, sold, studied or loaned.
4
Name the primary objective
State the essential preservation or use outcome in measurable terms.
5
Add secondary and optional objectives
Make clear that these cannot compromise the primary objective.
6
Set prohibited outcomes
List original features, evidence and treatment boundaries that must not be crossed.
7
Choose an intervention level
Stop at the lowest level that can deliver the required result.
8
Define visibility and disclosure
Decide how additions should appear and how future owners will identify them.
9
Agree documentation
Specify photographs, diagrams, material records, removed parts and future-care instructions.
10
Define the stop rule
State when unexpected evidence, risk or material response requires work to pause and the objective to be reconsidered.
Final judgement
A successful restoration is not necessarily the object that looks least damaged. It is the object for which the objective was clearly defined, important original material was preserved, active risks were reduced, intervention was proportionate, additions were evidence-based, uncertainties were not disguised, future options remain open where possible and the work was honestly documented.
The final object may still show age, loss, damage or repair. Those features do not prove failure. Failure occurs when treatment solves the wrong problem, sacrifices what made the object significant or creates an appearance that misrepresents its history.
Key takeaways
•Define the intended result before selecting a method.
•Stability, originality, appearance, function and evidence are separate objectives and may conflict.
•Primary preservation needs should outrank secondary cosmetic ambitions.
•Use the lowest intervention level that can genuinely achieve the objective.
•A reconstruction or invisible repair carries an increased burden of evidence, distinguishability and disclosure.
•No intervention, preventive support or a replica may be the most responsible solution.
•Documentation is part of restoration because it preserves the meaning of what has changed.
•The best objective protects the qualities that make this particular object significant rather than pursuing generic improvement.
