PSA is the largest and most trusted autograph authentication service in the world. With over 35 million collectibles certified, PSA authenticates a vast array of signatures, ranging from sports to history and entertainment. Combining decades of experience with cutting-edge authentication techniques and a passion for the hobby, PSA continues to deliver a service collectors prefer.
Assign a numerical grade to your PSA-certified autograph, and it will set that autograph apart in the market.
Not only can PSA grade your autographs, but we can grade the quality and condition of your baseball.
See if your rookie autographs qualify for these special designations.
Get a PSA authenticator’s opinion before you bid on a potential purchase.
Learn more about the best way to guarantee the authenticity of your autographed memorabilia.
Learn more about this unique service for auctions and prospective bidders.
PSA authenticators conduct ink analysis, autograph structure analysis, object evaluation and side-by-side comparisons.
Authenticators may also use a video spectral comparator to further evaluate the autograph.
Once the autograph is deemed genuine, a certification sticker bearing a unique alphanumeric serial number is applied to the item.
A Letter of Authenticity (LOA) is issued for the genuine autograph. The document contains the same alphanumeric serial number to match the label on the item.
As the collectibles industry continues to expand, and the demand for PSA’s services continues to expand along with it, PSA may decide to adjust pricing, services offered, and processing time to better align the demand for PSA services with our capacity to deliver those services.
All terms & conditions are subject to change.