Don mattingly autographed card

Answer 1

A Don Mattingly autographed Baseball card is worth between $20.-$35. Prices may vary based on condition, and the type of authenticity that accompanies the signature. Signatures that have not been authenticated could sell at half the market value or less.

Collectible items could add value to the price of a signature but not always. As in the case of a baseball card, generally collectors of baseball cards would rather have a baseball card without the signature. The signature would be considered as a flaw in the condition of the card and will lower the value.

A collector of signatures will not always pay extra for the "collectible" baseball card. The autograph collectors main concern is displaying the signature. This is why it is not a good idea to have an expensive baseball card signed. You could devalue the price of the card, and get less for it.