This is a beautiful sheet of 6 stamps, issued by Guinea-Bissau in 2010, displaying seashells. Featured shells shown include the Turbo (Marmarostoma) Pulser Sea Snail, Turbo Argyrostomus Silvermouth Turban, Aliger Gigas Rooster Conch, Mira Bilistromus Listeri Sea Shell, Spider Conch, Neptunea Contraria Mollusk, Knobbed Triton Sea Snail, Black-Lip Pearl Oyster, European Flat Oyster, Snipe's Bill Murex, and the Purple Dye Murex. The sheet is Michel catalog #5089-94, and is Post Office fresh, mint never hinged, and F/VF.