Original WWI U.S. Army Chemical Warfare Service "Klaxon" Siren by Stewart Warner Speedometer Corp - Fully Functional British Antique Guns and the silver bullion front

and the silver bullion front side showing light wear

We do not know the name of the recipient of this flask but clearly he was a "brother" officer aboard the HMS Violet

Robert Russell

ALLE FÜR EINER

to the south of Paris

Original WWI U.S. Army Chemical Warfare Service "Klaxon" Siren by Stewart Warner Speedometer Corp - Fully Functional British Antique Guns and the silver bullion frontOriginal 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