Original U.S. WWII Manhattan Project A Bomb Bronze Workers Pin Russian Machine Guns Each of the three types

Each of the three types has 28 panels

had fought for the Germans in the First World War and won the Iron Cross

The simplified design of the Mark 8 had just a gun tube and jacket

Considering the age of the screws and guns and the various sources of both

Original U.S. WWII Manhattan Project A Bomb Bronze Workers Pin Russian Machine Guns Each of the three typesOriginal item: Only One Available. This is a genuine bronze MANHATTAN PROJECT pin that was given to the workers who spent less than one year on the project. A sterling silver pin would be awarded to workers who spent over one year on the project. The design has a big "A" in the middle, for "Atomic." The castle shown on the bottom is the symbol for the Army Corps of Engineers. For this reason, the project's administrative headquarters building in Oak