MK-002
Group of three keys, at the center:
A “Bathtub” key as used during WWII by the RAF (Royal Air Force) and other Commonwealth Air Forces, Ref. N. 10 A/7741, type F.
At the left: key marked “Key and Plug Assembly No. 9,
Cat. No. Z-A 0937”.
Inside contains a bakelite key, WT 8 AMP No. 2 MK II.
The straps were used to hold the key to the operator´s thigh.
At the right: a J5A Key and Switch, used with the No. 48 Set. Maker unknown.