Vintage Singer sewing machine bakelite S-3 work light, mounting screw included. Features a toggle switch on the body and comes complete with the metal reflector. Very nice vintage condition, working order, no cracks or breaks to the bakelite. The wiring remains in usable condition. Compatible with machines that have the mounting point on the rear of the arm (see last picture), including the 15-90 / 15-91, 66, 128, etc. Genuine, original Simanco part.