Original U.S. WWII Manhattan Project A Bomb Workers Sterling Silver Pin British Machine Guns Two canvas flaps with eyelets

Two canvas flaps with eyelets were provided: M-1943 entrenching tool on top center

Each company painted their respective letter inside the shape

and Underwater Demolition Training Officer

The ricasso is marked with a brass plug set in a six-pointed star that reads: PROVED

The sling will also work for G/K43 and MP43/44

Original U.S. WWII Manhattan Project A Bomb Workers Sterling Silver Pin British Machine Guns Two canvas flaps with eyeletsOriginal item: Only One Available. This is a genuine sterling silver MANHATTAN PROJECT pin that was given to the workers who spent for more than one year on the project. The pin is polished and in excellent condition with working pin and catch. It is nicely marked on the reverse with maker Whitehead Hoag and Sterling. Pin measures 11 16 inch round. The Manhattan Project was a research and development undertaking during World War II that produced the