DAMBUSTER Signed Postal Cover
1999 Postal cover commemorating THE DAMBUSTERS signed by crew member and Bomb Aimer Flt Lt KEN SUMPTER, DFC, DFM. Led by Wing Commander Guy Gibson, 'Operation Chastise'�was an attack on�German�dams carried out on 16�17 May 1943 by�Royal Air Force�No. 617 Squadron, later called the Dambusters, using a purpose-built 'bouncing bomb' developed by�Barnes Wallis. The�M�hne, Edersee�and Sorpe dams were breached, causing catastrophic flooding of Germany's industrial area, the�Ruhr�valley. Supplied with a Certificate of Authenticity with a hologrammed serial number.