Original U.S. Mk 83 Low-Drag General-Purpose 1,000lb Practice Bomb with Wooden Display Stands - INERT Madsen LMG and the chamber was adapted

and the chamber was adapted to fire the new Mk VII High Velocity spitzer

Certainly more research should be conducted but this is a fascinating piece of WW2 history

They killed Germans coming at them from the front

and the black anodized coating is completely worn in many places on the knife

Original U.S. Mk 83 Low-Drag General-Purpose 1,000lb Practice Bomb with Wooden Display Stands - INERT Madsen LMG and the chamber was adaptedOriginal Item: Only One Available. This Mk 83 was made to be used in practice and was never filled with any explosive contents and adheres to the specifications provided by the BATF on inert ordnance ownership. The Mark 83 is part of the Mark 80 series of low drag general purpose bombs in United States service. The nominal weight of the bomb is 1,000 lb (454 kg), although its actual weight varies between 985 lb (447 kg) and 1,030 lb (468 kg),