Sandy Koufax Autographed 1981 Perez-Steele 1981 Fifth Series Hall of Fame Postcard. Lot 177. Sandy Koufax Autographed 1981 Perez-Steele 1981 Fifth Series Hall of Fame Postcard. Mint 9 to gem mint 10 signature authenticated by Kevin Keating. Winning Bid $138. Back to List Winning Bid $138 Back to List