Altered & Enhanced Items

Before buying

Direct your scrutiny towards the feature that creates the premium, because a genuine base object can make one false feature look convincing.

1. Identify exactly which feature creates the rarity, grade, completeness or association premium.
2. Ask whether that feature can be added, removed, replaced, strengthened or simulated.
3. Request high-resolution images of edges, backs, joints, marks, labels, accessories and packaging.
4. Ask for exact verbs and locations: what was cleaned, replaced, repainted, filled, trimmed or reconstructed?
5. Compare dimensions and construction with several verified examples and known tolerances.
6. Check certification details, scope, grader notes and any earlier auction appearances.
7. Authenticate packaging, accessories, labels and signatures separately from the base object.
8. Seek specialist examination when value depends on one small or easily altered feature.

During examination

Observe first and interpret second. The aim is to build a component-level account rather than force a premature real-or-fake verdict.

1. Record dimensions, weight and construction without relying on the seller's description.
2. Examine under normal, raking and magnified light.
3. Inspect edges, interfaces, fasteners and joins for incompatible manufacture or wear.
4. Look for coatings, retouching, filler, adhesive, replacement material and disturbed surfaces.
5. Compare wear across adjoining parts and beneath fittings.
6. Photograph each suspected intervention and mark its location.
7. Separate direct observations from interpretations and confidence levels.
8. Escalate to imaging or materials analysis only when it can answer a defined question.

Before treatment

Authentication should normally precede irreversible treatment because cleaning, trimming, polishing and repainting can destroy the evidence needed to understand the object.

1. Establish whether the goal is preservation, safety, function, appearance or sale preparation.
2. Photograph the object comprehensively before any work begins.
3. Obtain a written proposal identifying materials, methods, risks and likely removals.
4. Ask whether the treatment is minimal, stable, reversible or retreatable.
5. Do not clean or refinish an evidence-bearing surface before authentication.
6. Retain removed original components and label them permanently.
7. Require a final report and post-treatment photographs to remain with the item.

When recording or selling

Disclosure should enable the next collector to reconstruct the object's present composition and treatment history without decoding promotional language.

1. State what is original, replaced, restored, reproduced, cleaned, recoloured, added or removed.
2. Give the location and approximate extent of each intervention.
3. Separate original-to-object, donor, period, manufacturer and reproduction components.
4. State who performed the work and when, where known, and preserve uncertainty where not known.
5. Explain whether the alteration affects identity, originality, completeness, grade or value.
6. Transfer treatment records, photographs, reports and removed components to the next owner.
7. Avoid grade or completeness language that silently ignores alteration.

Old alteration is not the same as original state

A period owner repair, authorised factory service, early collector restoration and recent deceptive enhancement occupy different historical positions. A Victorian repair to a medieval object is not medieval, but it may be part of the object's documented later history. Avoid both old equals original and modern equals worthless.

Reversible does not mean harmless

Professional conservation often favours minimal, stable and retreatable methods, but even removable overpaint can conceal authentic evidence and mislead buyers. Conversely, an irreversible treatment may have been necessary to arrest serious deterioration. Reversibility informs risk; it does not decide legitimacy alone.

Later work can become historically significant

An intervention may matter because it was performed by a known restorer, commissioned by an important owner, documented in an early photograph or representative of historic conservation practice. Authentication should identify layers rather than automatically erase every later one.

There is no universal percentage of originality

Identity depends on the significance of what survives, not only its weight or area. Replacing a screw is not equivalent to replacing a painted surface; a dust jacket may be physically separate yet commercially decisive. Claims such as 90% original are weak unless the method and significance of the calculation are made explicit.