Gray Flashlight with Rotating Lenses

Unmarked period flashlight with an unusual rotating colored lens feature. Simply turn the lenses between red, blue or green. If you want white light you open up the shade. I did not test it but, it looks like it would work fine. There is some rust inside as well as light surface rust outside. There is some original paint that looks very close to panzer gray. This has the nice metal button loop. It closes but the latch could use a little tinkering to keep it closed. There is some sticker residue on the back. No maker markings.