Hj Flak Helper Whistle Archive crown has a mark “750

crown has a mark “750 FR” (for period 1867-72)

1919 and placed in charge of engineering

Other systems normal

He was invested with the Order of the British Empire

chivalrous toward his opponent and filled with a sense of justice

Hj Flak Helper Whistle Archive crown has a mark “750HJ Flak Helper Whistle Black with wooden ball housed chamber, unmarked, 18 mm x 64 mm, on 390 mm nylon cord with loop at the end for suspension, light contact, very fine. Footnote: When the ball is present inside the chamber, it alternately blocks and unblocks part of the exit slot. This action produces a warbling alternation of tone that makes the whistle's sound more attention grabbing.