USN Air Raid Siren
An authentic USN ships air raid siren in immaculate and working order. Mounted on a slab of varnished red oak as well as rigged with a toggle switch.. Cover your ears mateys as this thing can really scream. Made by the Federal Sign and Signal Company in Blue Island Illinois. Measures 6 inches in diameter and protrudes about 9 inches. The backboard measures 12″ x 9″. Hear her sound off below mateys..