Collector glossary
The autograph and memorabilia world has its own shorthand, and a single misread term can cost a buyer real money. This glossary defines the words you'll meet most often on this site and across the hobby. For how these ideas fit together in practice, see the authentication guide.
| Term | Meaning |
|---|---|
| Autopen | A mechanical device that reproduces a signature with a real pen. Autopen marks are not collectible hand-signatures, though they can fool the eye. |
| COA (Certificate of Authenticity) | A document asserting an item was genuinely signed by a particular person. Most valuable when itemized to a specific piece and backed by a reputable issuer. |
| Cut signature | A signature removed from a larger document, letter or page, often mounted with a photo. Convenient but separated from its original context. |
| In-person | An autograph obtained face to face, typically at a signing or convention, where the act of signing can be witnessed. |
| Inscription | Personalized text a signer adds, such as a dedication to a named fan. Inscriptions can lower resale appeal but add sentimental and provenance value. |
| Masterprint | A high-quality printed photographic image, often of a film or character, sold as an affordable collectible and sometimes used as a base for in-person signing. |
| Preprint | A photo on which a signature is part of the printed image rather than hand-applied. Not an original autograph. |
| Provenance | The documented history of an item's ownership and origin — the chain of custody from signing to current holder. |
| Secretarial signature | A signature applied by an assistant on a celebrity's behalf. Authentic to the office, but not a genuine personal autograph. |
| Still | A standard publicity or production photograph from a film or series, a common surface for autographs. |
| UACC | The Universal Autograph Collectors Club, a long-running collector organization that maintains a registry of dealers who pledge to a code of ethics. |
| Witnessed | An autograph signed in front of an authenticator or organizer, who then documents the event — among the strongest forms of in-person authentication. |
Definitions here are general explanations for collectors and are not legal, financial, or appraisal advice.