This is an 11.5″ x 8″ heavy grade tin sign that features a reproduction of a Smithsonian poster depicting the German planes on one side and the British on the other from World War I. These were provided to both the public and the military to avoid mistakes during the war. These are produced in the style of the original tin signs that were common in the first half of the 20th century. It is a mint, never used sign, complete with pin holes in the corners for easy hanging and protected in shrink wrap. These also look very nice framed. It has been stored in a smoke and pet free environment.