headlight with blue lens

I have an old headlight but the lens is blue.Anyone know what this might be from? Thanks!

 

If it's egg-shaped and long w/purplish, blue for a lens it's possibly an (E&J) Headlight!

 

We need pictures!!

 

Cop Car? Oh, you said head light ....nevermind/

 

post a picture, we want to see this.

 

i have one too - mine is like a exterior mounted fog light (chrome housing etc) but the lense is blue - i thought maybe ambulance or rear window of a cop car