How to Tell If a Sports Autograph Is Real
The signed-memorabilia market is full of fakes — printed signatures passed off as real, autopen copies, and “certificates” that mean nothing. At West Coast Deals we authenticate everything we sell, the same way we do with sneakers. Here's how we check a sports autograph, and how you can too.
Start with the authentication, not the signature
A real signature you can't verify is worth about as much as a fake. The first thing to look for isn't the ink — it's the authentication behind it. Reputable signed cards and memorabilia are authenticated by an independent third party that inspects the item, matches the signature against known exemplars, and issues a tamper-evident hologram or sticker with a serial number you can look up in a public database.
Know the third-party authenticators
Three names carry weight in autographs: PSA/DNA (Professional Sports Authenticator), JSA (James Spence Authentication), and Beckett Authentication Services (BAS). Each applies a numbered hologram to the item plus a matching certificate. The step most buyers skip: take the serial number and look it up on the authenticator's website. If the number doesn't resolve — or the details don't match the item in front of you — treat it as unverified.
Red flags: autopen, preprint, and stamped signatures
Not every “autograph” was signed by a person. Many trading cards include a printed facsimile signature as part of the card design — it's ink under the card's gloss, not on top of it. An autopen produces suspiciously identical signatures across multiple items, with uniform pressure and no natural variation. A genuine hand-signed autograph usually shows subtle differences in pen pressure, slight ink pooling at stops and starts, and a line that sits on the surface. When in doubt, compare against verified examples of that person's signature.
What about a certificate of authenticity?
A certificate of authenticity (COA) is only as trustworthy as whoever issued it. A COA from PSA/DNA, JSA, or Beckett is meaningful. A generic COA from an unknown seller, with no matching hologram and no lookup, is not. The document should tie back to the specific item and to an authenticator you can independently check.
Graded, slabbed, or just authenticated?
These aren't the same thing. Authentication confirms the signature is real. Grading — the numbered 1–10 scale you see on slabbed cards — rates the card's condition, and in some cases the autograph too. A card can be authenticated without being graded, and vice versa. If you're new to the numbers on those sealed cases, we break them down in PSA grading explained.
How does West Coast Deals handle authenticity?
The same standard we hold for footwear applies to everything else we sell: every item is inspected in-house before it ships. It's the Verified & Shipped promise — checked by our team in Portland, Oregon, then sent out fast. If you've read how we handle sneakers, the logic carries straight over. See how sneaker sites verify authenticity, our take on whether GOAT is legit, and whether West Coast Deals is legit.
Before you buy a signed card
Run the checklist. Is it authenticated by PSA/DNA, JSA, or Beckett? Does the hologram serial number resolve in their database? Does the signature look hand-applied, not printed? Does the seller stand behind it? If you can answer yes to all four, you're on solid ground. You can see how this looks in practice on our own authenticated pieces, like the Dominic Zvada autographed card.
— Anthony from West Coast Deals