Hawker Commemorative First Day Cover Signed By Sir Thomas Sopwith

Boldly Signed by Tom Sopwith just after his 91st birthday. A fine first day cover produced in 1979 by Australia's Royal Air Force Museum as part of their test pilot series. It commemorates not only the great Australian aviation pioneer whose exploits as early as 1910 were evidence of how far early aeroplanes could fly but he also became the major aircraft manufacture with Harry Hawker which became famous in World War I.