SQUARE D SAFETY SWITCH

This 'gray box switch' was made by SQUARE D COMPANY, DETROIT 11 MICHIGAN. It is a 'three pole' switch with cartridge type fuses, like most its particular electrical specs and info are on a label inside its door. Pics 2 & 3 show the switch mechanism inside in its ON and OFF positions, respectively. This one also has somebody's electric notation written on the cover, and a small paper label reading "Organ Switch" -- presumably I got it someplace where it used to control power to an organ blower motor. (but I don't really remember exactly where that might have been, maybe I got it 'loose' somewhere along the lines instead?)