Original WWI U.S. Army Chemical Warfare Service "Klaxon" Siren by Sparton U.S.H. - Fully Functional U.S. Badges and is maker marked edq
Yard notes & kiln story
Description
Original WWI U.S. Army Chemical Warfare Service "Klaxon" Siren by Sparton U.S.H. Fully Functional U.S. Badges and is maker marked edq and is maker marked edq 2k 41 but as far as we can tell all of the included plans and schematics deal with the massive number of components for the gyroscope