This switch must have been the On/Off Switch for my heater in my 1953 Chevrolet Panel Truck. Anyone else ever see this or have this Switch in their Chevy Panel Truck ? One wire (orange wire) comes out of the heater blower motor and was connected to this switch,and another wire is connected to this switch and goes up under the dash somewhere. I havent traced it down yet ,but I will tomorrow. Thanks for any help, Please.