What is this taillight from??

Well I got these two taillights, but have no idea what they are from. with a little grinding they will fit the contour of my model a sedan though. Not sure if I wanna use them, but they're different. Any clue what they are???

 

How wide is the lens?
I would guess bus, boat, or travel trailer.
What do they say on them?
They are cool.

 

They are at my shop now, but I would say the lens is about 3" in diameter, and the housing is 6" long. They say "oldsig" on each housing. They are cast aluminum housings. They are cool and different, I just have no clue what they are from though. They actually looked good closer to the beltline then the tape held them at, but they might work out

 

GM, I think...look like about an late 30's Olds or Pontiac...but then again they could be Mopar.

R-

 

'38 Oldsmobile. I have a couple of pairs of those.

 

39 chebby

 

they are 39 l***alle a find of min needs a pare real bad . if you want to sell . hard to come by .

 

The ring and lense look exactly like a '39 Chevy I had, so I'd definitely say about '39 GM. And the "oldsig" gives it away as being Oldsmobile.

 

Thanks for all the help guys! I guess its quite possible that these were on different GM cars in the same era. They looked pretty cool though, a little different without being out-of-place