This is a museum quality reproduction of the Belgium Pilot King Albert Officers wing that was used in 1918 with both the right and left collars made in sterling silver with a 24k Gold plate. Also a full size wing was 3 1/16 inches wide. To see more on what a Belgian officer would have worn on his uniform a great site is http://users.skynet.be/Belgian.militaria/pilot.htm A very rare wing set missing from most collections. After all how many pilots belonged to the Air Force in Belgium in WWI? They had 4 squadrons when the war started by 1916 it grew to 6 squadrons and overall had 11 Aces. This tiny Air Force had 127 aircraft and lost 65 airmen killed.