Original WWI U.S. Army Chemical Warfare Service "Klaxon" Siren by Stewart Warner Speedometer Corp - Fully Functional British Antique Guns so the bottom edge is

so the bottom edge is not entirely straight anymore

ALLE FÜR EINER

going into Berchesgaarten

It is partly obscured by rust

firing pin is still intact and it functions as expected

Original WWI U.S. Army Chemical Warfare Service "Klaxon" Siren by Stewart Warner Speedometer Corp - Fully Functional British Antique Guns so the bottom edge isOriginal Item: Only One Available. Gas Warfare, now banned by International Treaty, was first introduced in WWI on the Western Front, and the results were devastating. Soon everyone was issued with a gas mask and was required to carry one at all times. Various types of "gas alarms", from simple wooden rattles to mechanical sirens were employed to help warn the soldiers that it was time to put the mask on. This Vintage WWI (circa 1916) siren works