Original WWI U.S. Army Chemical Warfare Service Siren by Sparton U.S.H. - Fully Functional Airsoft Guns Inertia carries the bolt backwards

Inertia carries the bolt backwards until the base of the fired case hits the ejector flinging the empty out of the receiver

in the Regular Army

pear-shaped

II Crown in the center of the red and blue enameled helmet plate

the has a sewn selvage hem around all four sides to prevent fraying

Original WWI U.S. Army Chemical Warfare Service Siren by Sparton U.S.H. - Fully Functional Airsoft Guns Inertia carries the bolt backwardsOriginal Item: Only One Available. This Vintage WWI (circa 1916) siren works perfectly, and is an EXTREMELY LOUD noisemaker! It features a wooden crank handle and is in very good condition. Having began in late 1800's, the Sparks Withington Co. officially incorporated in 1916, during which time they had a very brief period of military production during World War 1. During that same period the company adopted the trade name "Sparton", thus the data