The New Haven Model 283 (including variants like 283T, 283TB, and 283TA) is a vintage .410 bore bolt-action shotgun manufactured by O.F. Mossberg & Sons and sold under the “New Haven” house brand (often through retailers like Montgomery Ward). It features a 24-inch barrel, a 3-inch chamber (accepting both 2-1/2″ and 3″ shells), an internal/tubular or fixed box magazine, and a traditional wood stock. [1, 2, 3, 4, 5, 6, 7]