Official replica
Authorised by a rights holder, institution, artist, studio or manufacturer.
Authentication question
Is this genuinely the authorised replica claimed?
Museum or archival facsimile
Made for preservation, exhibition, research, teaching or safe handling.
Authentication question
Who commissioned and produced it, and to what specification?
Maker's or workshop replica
A later version made by the original maker, workshop, estate or associated manufacturer.
Authentication question
How does it relate to the first version, and when was this example produced?
Period copy
Made during or near the historical period of the original, but not the primary original itself.
Authentication question
Is it genuinely contemporary, and what was its historical role?
Licensed commercial replica
Official merchandise reproducing a historical, sporting or fictional object.
Authentication question
Can the licence, maker, edition and release be verified?
Commemorative reproduction or reissue
A later issue celebrating or reviving an earlier design, product or event.
Authentication question
Is it the stated later issue rather than an original-period example?
Replacement component
A modern substitute for a missing, damaged or unusable original part.
Authentication question
Is it disclosed, distinguishable and correctly described at component level?
A small replica component can materially alter completeness, rarity and value.
Study or reference copy
Made for comparison, teaching, experimentation or research.
Authentication question
Does it have documented research or institutional significance of its own?
Fan-made or unofficial replica
Privately produced without necessarily claiming official status.
Authentication question
Are the maker, date and unofficial status clear?
Fantasy piece
A newly invented object resembling a historical or collectible type that never actually existed.
Authentication question
Is invention being misrepresented as historical production?
Counterfeit
An unauthorised imitation intended, marketed or likely to pass as genuine.
Authentication question
What physical and documentary evidence disproves the claimed identity?
Deception may involve genuine-looking packaging, certificates or removed replica marks.