How much is an autograph worth?
Start with sales of genuinely comparable objects. The signer's name alone is not enough to put a defensible price on your item.
Direct answer: An autograph is worth what comparable completed sales support—not an asking price and not a celebrity name by itself. Match signer, object type, condition, inscriptions, and authentication context; then treat any AI range as a research starting point, not a formal appraisal or guaranteed resale value.
Prepared by Lingga Kusuma Sakti for Autograph Identifier AI. This is a research worksheet, not a formal appraisal or a current price list.
Describe what you have before searching prices
Write down the possible signer, type of object, size or edition, condition, personalization, and authentication status. Photograph fading, creases, stains, and incomplete strokes. If the identity is uncertain, research the signature first; prices for a famous candidate do not establish the value of an unidentified item.
Use completed sales, not just asking prices
An active listing shows a seller's request, not an agreed transaction. Find sold items and read the individual listing details. eBay recommends examining completed listings when researching prices and offers Product Research for deeper sale comparisons. Read eBay's Product Research guidance.
Record the sale date, currency, shipping treatment, and any visible differences. An ended listing without a sale is not a sold comparable. Where a best offer or final transaction price is unclear, flag the uncertainty.
A comparable-sale worksheet
| Field | What to check |
|---|---|
| Object | Ball, card, photograph, jersey, or document; edition and size where relevant. |
| Signature | Same signer, number of signatures, inscriptions, and personalization. |
| Evidence | Authentication status, issuer, and documented history. |
| Condition | Ink visibility, damage, fading, and the object's own condition. |
| Sale | Date, actual sold amount, currency, and whether shipping or other charges are included. |
Exclude comparisons with a major difference you cannot reasonably account for. A game-used jersey, an unsigned card, and a signed photograph should not become one average just because they mention the same athlete.
Worked example: why a range needs context
Invented numbers for illustration, not market prices: suppose three closely comparable photographs sold for $80, $95, and $110. A fourth listing asks $500 but has not sold. The three sales give an observed range of $80–$110; the asking price is not another transaction. If your photograph has fading or lacks the documentation shared by those examples, even that range may not apply.
Do not apply a made-up percentage for a condition or authentication difference. Search for a closer comparison, describe the gap explicitly, or ask a qualified appraiser when the purpose requires a formal opinion.
A sale price is different from what you receive
When deciding whether to sell, separate the estimated sale amount from applicable marketplace fees, shipping, insurance, authentication costs, and taxes. Check current charges with the services you plan to use. For insurance or estate purposes, ask the relevant organization what appraisal documentation it accepts.
How to use the app's estimate
Autograph Identifier AI provides a suggested range based on its analysis. The output is not a verified record of completed sales. Use it to organize research, then check independent transactions and the evidence for authenticity. Do not describe a model estimate as a guaranteed resale value.
Keep the result useful
- Save links and dates for the comparisons you relied on.
- Explain why each object is comparable to yours.
- Keep unresolved identity or documentation issues visible.
- Revisit the research when you obtain new evidence or plan a transaction.
Open the printable autograph research worksheet to record your evidence and next steps.