This is a beautiful sheet consisting of 6 stamps, issued by Guinea in 2007, illustrating chess in artwork. Featured on the sheet is "Femme a cote d'un echiquier" by French painter Henri Matisse, "Super Chess" by Swiss surrealist painter Paul Klee, and "Portrait de joueurs d'echecs (Portrait of Chess Players)" by Dada artist Marcel Duchamp. The sheet is Post Office fresh, mint never hinged.