A rectangular black plastic switch on a square black plastic base. Rectangular red plastic enclosure at base of switch. 6 metal terminals mounted onto base, with two screws protruding from the end of each. "OFF" and "ON" at top and bottom of base. Base has 2 screw holes in opposite corners.
For A.C. Only / Cat.48 / PDL / CH.-CH. N.Z. Embossed
Switch, 1982.291.16. The Museum of Transport and Technology (MOTAT).