Hello,
You might notice the insignia on the nose of No.50 Sqn Hampden I P2070. It is an Australian aboriginal boomerang and waddy (nulla nulla)*.
The pilot of P2070, 41505 P/O Robert David WAWN RAF, was an Australian serving in the RAF. He originally came from Waverley, N.S.W. Wawn was granted a short-service commission in the RAF on 14th December, 1938.
Wawn passed away in N.S.W., on 10th August, 1992.
Robert Wawn's older brother, 261720 S/L Jack Aubrey WAWN AFC RAAF, was also a PoW. He went missing in 25 Sqn RAAF Liberator A72-133, on 26th April, 1945. He survived Japanese imprisonment and died on 2nd December, 2004.
*
http://en.wikipedia.org/wiki/Waddy
Col.