This is a beautiful souvenir sheet with 1 stamp, issued by Guinea Bissau in 2008 as a tribute to Grandmaster World Chess Champion Bobby Fischer. Also featured on the sheet are a Red Spotted Butterfly, Monarch Butterfly, the Sterculiaceae flowering plant, and a Philippine Tarsier monkey. The sheet is Michel catalog #3720/ Bl. 629, and is Post Office fresh, mint never hinged.