United Kingdom. A First War Infantry Trench Whistle Auction and the left-hand rank collar

and the left-hand rank collar tab

Rall transferred to the Luftwaffe soon after and he qualified as a fighter pilot in 1938

before returning to the New Brunswick Regimental Depot

was subjected to a court-martial

United Kingdom. A First War Infantry Trench Whistle Auction and the left-hand rank collarIn silver nickel, maker marked and dated "J. HUDSON & Co BIRMINGHAM 1915" on the shaft, marked "PATENT 5727 08" on the cap, the adjoining loop with a full length braided brown neck cord fed through it, measuring 81. 7 mm in length x 16 mm in diameter, contact marks, very fine. Footnote: British forces were the first to make use of whistles in the trenches of the First World War. The whistles were made by J. Hudson & Company, which was later bought out