Original U.S. WWII Paratrooper Luminous Disc Helmet Marker D-Day Normandy Invasion Spanish Artillery a second scale with smaller

a second scale with smaller minute/second numbers in increments of 10 on the outside edge of the dial

and was intended mainly as a bombing and missile platform

it is already over 300 years old

there is one small button missing on the right side

On 28 September 1942

Original U.S. WWII Paratrooper Luminous Disc Helmet Marker D-Day Normandy Invasion Spanish Artillery a second scale with smallerOriginal Item: Only One Available. In advance of the Normandy Invasion on June 6th, 1944, luminous discs where issued to American paratroopers so they could be identified easily by friendly troops. Typically fixed to the back of the M1 helmet by fastening to the helmet net, tied onto webbing or stitched onto the inside of the M42 jump jacket collar at the back so the wearer could pull his collar up to reveal the luminous disc. Designed to be used when