Selling an AutographIf you sell to a Sports Memorabilia dealer you will only get about half the market value more or less depending on how long the dealer feels it will take to resell. You must sell to a collector to get full market value. eBay is loaded with collectors. You might also want to look into an on line auction house that specializes in sports memorabilia. They will also help you authenticate the signature if it's not already done. Signatures that are not properly authenticated could sell at half the market value or less. EBAY!!!