This is a beautiful sheet of 6 stamps, issued in 2012, marking the 75th anniversary of the bombing of the town of Guernica during the Spanish Civil War. The stamps and sheet feature images of German warplanes (the Junkers Ju 52, the Messerschmitt Bf 109, and the Heinkel He 111), as well as images from the 1937 painting "Guernica" by Pablo Picasso, depicting the tragedies and suffering of the war. The sheet is Scott catalog 32548, and is Post Office fresh, mint never hinged, and F/VF.