Original U.S. WWII Manhattan Project A Bomb Workers Pin - Sterling Silver Night Sights The carbine was updated at

The carbine was updated at some point with a Model 1901 adjustable rear sight

This is a piece of original metal skin from the B-17G "Shoo Shoo Baby

The late war issue galvanized steel liner band is marked on the left outer side with 64 nA / 56

and looks nearly smooth at this point

Original U.S. WWII Manhattan Project A Bomb Workers Pin - Sterling Silver Night Sights The carbine was updated atOriginal 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 in very good condition with working pin and catch. It is nicely marked on the reverse with maker Whitehead Hoag and Sterling. Pin measures 11 16 of inch round. It comes in a small display box, but we do not know if this an original box, or just one used to store it. The