This uniform is an example of an R.A.A.F officers pattern khaki drill service dress jacket. this particular example belonged to Flying Officer William Patrick Ryan. Ryan wore this uniform first as a Warrant Officer from the Second World War through to his later years as a Flying Officer (1952). The small holes from his Warrant Officer rank are still visible on the cuffs of the jacket. Ryan was a fighter pilot in the Second World War before becoming a transport pilot being deployed to Japan, Malaya and Korea.