Two Air Ministry Issued Whistles Hold rectangular hanger with pin back

rectangular hanger with pin back in Gold

which was in the 11th Submarine Flotilla

one without its prongs

all period strikings

1919 and was admitted to No

Two Air Ministry Issued Whistles Hold rectangular hanger with pin backTwo Air Ministry Issued Whistles The first whistle is fabricated from a nickel plated brass alloy, with a shaped mouthpiece and two distinct chambers for passage of air to exit on either side, plus a ring on the opposite end for attachment to the accompanying chain, marked with the Royal Crown above "A. M." (Air Ministry), "293 W 102" and maker marked "J. HUDSON & Co BIRMINGHAM" on the cylindrical shaft, measuring 18 mm x 82. 2 mm. Second whistle is