2007 Topps baseball Co-Signer Dual Cut Signatures #ADM Abner Doubleday/Mickey Mantle cut autograph card. The card and autographs have been graded and encapsulated by BGS MT 9 with an Autograph grade of 10. Sub-grades are centering 9.5; edges 8.5; corners 9; and surface 9.5. It is #1/1.