Vintage Bullseye Bulb In A Brass Surround

This Vintage Bullseye Bulb In A Brass Surround is very unusual. I've no idea which torch or type of lamp/lantern/flashlight it came from. From its size, I would guess a Vintage Police lantern.

The bullseye bulb measures approximately 6cm in diameter and the rear of the brass surround has a diameter of ~9cm. In pretty good condition, the lens does have scuffs and scratches but no cracks or chips. 

A nice little item for those of us whom love bullseye bulbs!

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