Guide Fog Light ID

All,

I have a pair of NOS two color Guide fog light lenses that I would like to ID. I would like to know what is Guide fog light part number that used this lens and what GM cars typically used this fog light as an accessory. The lens is Guide part number 5931442 and the diameter marked on the lens face is 5¾ inches. I would guess that the lens is circa 1941-1942 and perhaps early postwar.

Thanks,

Grandpa