Original WWII U.S. Navy BU. Aero Mk.IIIB Navigational Drafting Protractor by Bruning-Wallace in Case Airsoft Guns GRICE in an engraved banner

GRICE in an engraved banner

and the blade is currently not very sharp

it was decided to give the gas regulator key an additional function: it would be turned into a wrench to unscrew the tiny locating stud inside the clamp ring

though it is very light

but the lack of major powder burn suggests that this musket was not fired much during service

Original WWII U.S. Navy BU. Aero Mk.IIIB Navigational Drafting Protractor by Bruning-Wallace in Case Airsoft Guns GRICE in an engraved bannerOriginal Item: Only One Available. Genuine rare WWII Bruning Wallace Aircraft Mk. IIIB Navigational Drafting Protractor. The instrument is identical to the AN 5750 Protractor used by the U. S. Army Air Forces, but in this case was ordered by the U. S. Navy. The organizations that were largely responsible for procurement in the 1940s were designated Bureaus, each commanded by a Rear Admiral. These Bureaus included: Aeronautics, Engineering, Navigation,