autographs
How to Tell If an Autograph Needs Authentication
A simple framework — by figure significance, expected sale price, marketplace requirements, and your own selling timeline.
Published March 21, 2026Updated May 20, 20261 min read
Short answer
Authenticate any autograph expected to sell above ~$200, anything by a Hall-of-Famer or famously forged figure, anything you'll consign to an auction house, and anything you'll list on a major marketplace as authenticated.
When to authenticate
- The expected sale price is $200 or higher.
- The figure is famously forged (Mickey Mantle, Babe Ruth, Roberto Clemente, Tupac, John Lennon, presidents).
- The auction house or marketplace will require it.
- You plan to insure the item.
When you can skip
- Low-value items where authentication fees would consume the resale.
- Items with strong contemporaneous provenance that a buyer can verify directly (locker-room photos, signing-event records).
- Items destined for an estate sale or bulk lot where authentication would not change the realized price.
What “strong provenance” looks like
- A photograph of the signing.
- A ticket stub from the signing event.
- A signed receipt from a documented signing.
- A multi-year written record from the original owner.
Provenance can substitute for authentication on lower-value items. It rarely substitutes on higher-value items because buyers prefer the assurance of a third-party verifier.
A decision matrix
| Situation | Authenticate? |
|---|---|
| Modern star, ~$100 expected | Optional |
| Modern star, ~$500 expected | Yes |
| Hall of Famer, any price | Yes |
| Famously forged figure | Yes, with a top-tier service |
| Estate / inherited, unknown figure | Yes, after a value-research pass |
| Selling on eBay above $300 | Yes — authenticated listings outperform |