Hot Rods Anyone know what this fits?

I found this NOS fog light in a basement of a really old building awhile back. Does anyone know what it fits, maybe it's just a universal fog light?

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For medium and heavy trucks, truck trailers, passenger carriers, off-the-highway vehicles and motorized fire equipment....

 

Read the box... "For medium and Heavy duty Trucks"
Aftermarket part

 

I believe it's a GM add on part for:
medium and heavy trucks, truck trailers, passenger carriers, off-the-highway vehicles and motorized fire equipment.

 

In know what it is for after reading the box that it came in.

 

Of course it might even fit an old motorcycle.

 

Cool piece for sure. Nice find.

 

Motorized Fire Equipment, The fact that they Mentioned this lets you Know there was some Horsey's pullin Wagon's, and some Firemen smelling Hay Farts................

 

Is this a prank ?

 

I was not aware that Guide was a division of General Motors...

 

The purpose of your post is obviously to show off a neat find you made.

Unless you’re really stupid and can’t read the box it’s pretty obvious what it’s for.

Why not just say look what I found

 

oh, you never wondered why the lights on all those GM cars say "GUIDE"?