This is a beautiful sheet of 4 stamps, issued by Guinea-Bissau in 2009, illustrating the artwork of Irish born British figurative painter Francis Bacon. Featured paintings include "Study After Velázquez's Portrait of Pope Innocent X", "Painting (1946)", "Study for a Portrait of Van Gogh V 1957", and "Self Portrait 1973". The sheet is Post Office fresh, mint never hinged, and F/VF.