A different variation of the less commonly found 'tube' whistle used by wartime aircrews. Period photos show these hanging from the 1941 pattern Mae West or aircrew blouse. Manufactured in chromed white metal. Air Ministry King's crown markings and reference numbers '293/A.A./22. CON14C.' Good clear marks. Light tarnishing and some loss of plating but in good used condition. With chromed chain lanyard. Guaranteed original and not one of the may copies now on the market. Stock code MW16661.