I have a switch I picked up at a swap meet, and it looks exactly like the heater switch, and says FOG, as others have said. If I get to storage I will take a picture and post it.
Mike


My old truck's still running good, my ticker's ticking like they say it should, I got supper in the oven, a good woman's loving, and even my bad days aint that bad...Yeah, I'm a lucky man!
1953 Chevy 3100 Shortbed

1965 C-30 Panel Truck
1963 C-20 Long/Fleet Pick-up California Black Plate