R.A.F. Type 20 Microphone (Used in Type D Oxygen M
Stores Ref. 10A/11994. Black painted alloy microphone, often referred to as the \"1941\" pattern although actually introduced in October 1940. Minimal paint chipping/rubbing. Air Ministry and Kings Crown markings. Rubber \"band\" that goes around the microphone on the reverse is hard/perished. Remains of original loom still attached. An excellent example. Stock code O4594.