Hot Rods What are these lights off of???

Does anyone know what these lights came off of? The lenses are a light purple. Maybe they were originally clear and turned purple with age.

 

are there any numbers or letters etc on them?

 

Look like 48 Mercury parking lights. Some clear glass tints purple with age.

 

I think 41merc tail lights.A friend gave me a set.

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1942 Mercury park lamps?

 

Thanks guys. I knew someone on here would know.

 

old glass has magnesium in it, long time exposure to the sun turns them purple.