An autograph that is not authenticated by a creditable company could sell at half the market value or less. Two of the top, and most trusted authenticators are PSA/DNA, and James Spence Authentic (JSA). Collectors will pay more for signatures authenticated by either one. It may sound odd but in some cases PSA/DNA, and JSA authenticated signatures may sell higher than a Letter of authenticity from an unknown or less trusted authenticator that witnessed the signing even though PSA/DNA, and JSA did not. It's just a matter of collectors trust, and collectors will pay more for it. Check the respective websites Show Schedule to see if they will be in the area that you live. They also do business through the mail. If you did not acquire the signatures yourself, or are not sure of its origin, do your homework. Before spending money on having the autograph authenticatedfind signatures on line that have been properly authenticated, and compare them to yours. If you feel comfortable that they are authentic then proceed.
I have not been able to find a similar product to compare with. However, I did find on sportsartifacts.com a 1944 Sacramento Solons Team Signed Baseball with 22 signatures and a certificate of authenticity going for $195 and a 1966 Portland Beavers signed baseball with 15 signatures and a certificate of authenticity going for $50.
A signature is not in itself a legal document; it does not agree to anything or assert anything. It is, at most, a souvenir. Sometimes one can get a certificate of authenticity for something such as a signed baseball, a signed photograph, etc., but that is not the same as notarization.
I have seen a Kevin Millar signed baseball on the Legends Are Forever website going for $59.99 that states it is accompanied by their Hologramed Certificate of Authenticity.
The Academy of Manuscript and autograph, LLC is a good place to start there website is www.autographsauthentication.com or www.autographauthenticationservices.com
nothing the leafs are a bunch of dusters.
Somewhere between $15 and $25 assuming you have a LEGITIMATE certificate of authenticity.
A certificate of authenticity has no value unless it is in the company of a signed item such as a baseball, and the baseball holds the value. A 1969 New York Mets Team Signed Baseball with the key signatures: Hodges, Kranepool, Swoboda, Harrelson, Ryan, Seaver, and Koosman is worth about $850.-$2,000. Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Prices may also vary based on the amount of signatures, and key signatures acquired. The more complete the baseball with key signatures the more valuable. If the signatures are not properly authenticated the baseball could sell at half the market value or less.
A Ken Griffey, Jr. single signed baseball is worth between $75.-$100.Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions. If the baseball is inscribed "MVP All Star" it will have added value. In a recent auction a Ken Griffey, Jr single signed baseball sold for $107.
An Alex Rodriguez single signed baseball is worth between $250.-$400. Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the baseball. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions. If the signature is on a "Seatle Mariners" souvenir baseball it could be have less value than an Official Major League Baseball. In a recent auction (April 2008) an Alex Rodriguez single signed baseball sold for $358.50 For more prices on single signed baseball see Related Links below.
Yadier Molina signed baseballs w/ certificate of authenticity are valued around $100 retail.
Depends on the year, depends if jersey is stitched or not, and it depends whether you have a certificate of authenticity.
Depends who signed it, and if there is a certificate of authenticity or not. You could either put it on eBay or enter it in a sports memoribilia auction and see what the market is prepared to pay for it.