Baseball Cards Price

Does anybody have any idea how much a autographed USA-15 139/445 SP Upper Deck Joe Maurer in Mint is worth?

I have looked every where and have found no information? It is marked 2004 upper Deck USA Signatures SP.

Public Comments

1. no but go to worthpoint.com or ebay ended auctions (there's a tutorial on how to find them or use ebay help search) and see what others sold for. Good luck! =)