This is a beautiful sheet of 4 stamps, issued by Guinea-Bissau in 2009, displaying butterflies. Featured insects shown include the Dirce Beauty Colobura, Red Lacewing, Tiger Longwing, Peleides Blue Morpho, Malachite, Red Postman, The Clipper, Banded Orange Heliconian, Postman Butterfly, Sara Longwing, and the Rice Paper Butterfly. The sheet is Post Office fresh, mint never hinged, and F/VF.