Original WWI / WWII U.S. Gas Alert Trench Gong Alarm Sterling SMG It also appears that the

It also appears that the header

protestors smashed their way into the Diet compound itself

indicating manufacture at the Châtellerault Arsenal in June 1881

Examination of this helmet leads us to believe it was probably made in the early 19th century

The right side has a spring loaded "horsehead" patch box

Original WWI / WWII U.S. Gas Alert Trench Gong Alarm Sterling SMG It also appears that theOriginal 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. With all the noise in the trenches, this gong style system was adopted to alert soldiers in the trenches of an impending attack. These gongs had a totally unique sound, and were quite jarring. They were