R.A.F. Type 27 Carbon Microphone
Stores Ref. 10A/12572. Distinctive black painted \'ball-shaped\' microphone housing with angular metal on/off switch mounted on the top. Complete with rubber grommet at the point where the wiring would enter the housing. Looks to be in excellent condition but I suspect this may have been resprayed. The type 27 (more commonly known as the type 28 assembly when \'wired\') was sometimes used with the E-series and G-type oxygen masks in addition to the second pattern microphone carrier masks. Stock code O15420.