The U.S. Army Air Corps and the U.S. Navy did procure lots of 12-gauge Skeet Guns for aerial gunnery training during WW-II. However, that gun is not an NID Skeet Gun. It has been rewooded, and has an aftermarket Miller single selective trigger and has 2 (modified) and 4 (full) for the choke marks. An Ithaca NID Skeet Gun, by catalogue definition, would have had a beavertail forearm, ejectors, a factory single trigger and would have been choke marked S and S. While on the early NIDs Ithaca contracted for the Miller's to apply unmarked single selective triggers, by the time that gun was made Ithaca was using their own Howland-designed single triggers, both selective and non-selective. The chokes would measure about .009" and .014", pretty tight by today's skeet choke standards. The NID frames were case colored. That gun is a seriously redone "shooter." Gus procured by the Government would be stamped U.S. somewher on the metal and have the "flaming bomb" stamp nearby and the inspector's cartouche. It could of at one time been a Government gun used for guard purposes or even a gun for Special Services for Servicemen to check out to go hunting with when on leave of liberty.
