WWI British Royal Naval Air Service Mess Dress Pilot Wing

WWI British Royal Naval Air Service was a separate air arm that came into being in 1912 and became official on July 1, 1914. On April 1, 1918 they merged with the Royal Flying Corp to form the Royal Air Force. When they started they were a reserve unit and the pilot had metal wings. This is a reproduction of those extremely rare Pilot wings in brass as were the originals. This is the mess dress size at 1 3/8 inches.  I believe this is the only British wing ever issued in metal.