RAF Type 20 microphone.

RAF Type 20 microphone ( Type 21 when used with a wiring loom ) and the microphone most commonly associated with use with the type D, cloth oxygen mask. In original condition with AM designation 10A/11994, cut off wire and like many, with a decayed rubber interior ring. One abrasion to the front and some minor mis-shaping of exterior ring.

Code: 11075