Early RAF, carbon type 28 microphone and short loom with plug.
Air Ministry Ref No. 10A/12572. Metal hemispherical black finished cover (paint rubbed and scratched) which is stamped 10A/12572, with a top pivotal switch and a brown bakelite mounting ring. This is wired to a cotton braided wiring loom fitted with a black bakelite plug.
To be used with types E, E* and G, Oxygen Masks.
NOT FOR SALE to the EU.
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