Daimon square flashlight. This style is more typical for WWI. The bottom and inside are a little rotted out, probably from a leaky battery. It wants to work, but it needs more attention than I am willing to give it to get it there. I believe the switch is the main issue and the contacts needing a decent cleaning are also contributing. If you position the switch just right you can get the light to come on for a second. This has a wire button loop attached to the wire handle and a very bulbus lens. You unscrew the lens to replace the light bulb.
Batteries and bulbs available separately.