RAF Bomb Release Trigger Button

WWII Air Ministry marked Bomb Aimer's Release switch, with stores reference code 5D/534, complete with original lead that is connected to a type 5J plug stores ref 5D/596. These Trigger Buttons were used as a bomb release mechanism in a number of WWII bombers, including the Avro Lancaster, where it was located on the starboard side of the fuselage in the bomb aimers position in the nose. The firing switch could be modified with the addition of a metal loop that enabled it to be mounted in an interlock firing switch holder and could then not be removed until the bomb load had been fused and so prevented the accidental release of unfused bombs. This switch assembly appears to be in unissued condition with just minor storage marks to the lead. An identical example was sold at auction at the RAF Museum London on 5th March 2022 for £ 552. Ours represents rather better value!