Owen, an inventor from Wollongong, was 24 years old in July 1939 when he demonstrated his prototype .22 calibre "Machine Carbine" to Australian Army ordnance officers at Victoria Barracks in Sydney.
Owen, en opfinder fra Wollongong, var 24 år gammel i juli 1939 da han demonstrerede sin prototype .22 calibre "Machine Carbine" for australske våbenofficerer i Victoria Barracks i Sydney.