The History of Man in Flight (1972) Royal Airforce Museum silver hallmarked medallions (40g+/-3g, 0.925), set of 50 depicting important events and figures in the history of aviation, two albums, one containing medallions the other text, housed in sturdy slipcase (365 x 30 x 260 mm), total asw appro x 1.8kg. (Qty 50)