Original Imperial Japanese WWII Hand Crank Signal Flash Light - Fully Functional Availability_Both Size of this cap is

Size of this cap is approximately 55cm

It has a look to it which shows it saw service

Aside from the minor moth nips that we see in the blue piping (see photos)

- United State Army Air Corps Invitation to the Graduation Ceremony for the Navigation School Class 425 at Kelly Field

Original Imperial Japanese WWII Hand Crank Signal Flash Light - Fully Functional Availability_Both Size of this cap isOriginal Item: Only One Available. WWII Japanese military flashlight signal light in fully working condition. To operate the user flips the hand crank out, turns it several times, then flips the switch on the side, which starts the dynamo turning. Push the button on the light itself and it shines brightly. It doesn't cast much of a beam but it is enough to send signals using the screw off head with revolving color wheel, which glows red, green, or