Hj Flak Helper Whistle Archive A 1913 Serbian-Bulgarian War Campaign

A 1913 Serbian-Bulgarian War Campaign Medal - Bronze gilt

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

Footnote: Thomas Albert Edward World was born April 5

the Naval Base at Singapore on September 15

Other systems normal

Hj Flak Helper Whistle Archive A 1913 Serbian-Bulgarian War CampaignHJ 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.