Included are two shell casings and 30 projectiles. The cannon is mounted on a rolling 1968 dated Boeing Vertol balancing propeller stand. Attached to the cannon is a leather faced wooden shoulder stock. Each barrel is numbered on the collar 1 through 5. The trunnion is marked “CAL-1.457/1889” (right) and “WWK” (left). Pratt & Whitney started to manufacture the Hotchkiss revolving cannon for the U.S. Navy markings on top of the receiver: “U.S.N.//No-44 37 m/m/495 LBS-.” The breech has the Pratt & Whitney marking (faint). It was a built-up, rifled, rapid-fire gun of oil-tempered steel, having a rectangular breechblock which moved in a mortise cut completely through the jacket. Hotchkiss (18261885), founder of Hotchkiss et Cie. Hotchkiss naval revolving cannons continued to be used even into WWI primarily as defensive weapons used by larger vessels against torpedo boats. The Hotchkiss Revolving Cannon, was a revolving barrel machine gun invented in 1872 by Benjamin B. Others were used during the Spanish-American War by both sides. Army during the Indian Wars including during the Ute Uprising in Colorado in 1879. A 37 mm Hotchkiss field gun is known to have been used by the U.S. A well experienced crew was capable of firing 43 rounds a minute. They were used by several countries throughout the world, including the U.S., France, and Russia, and had an impressive range of over four miles (considered accurate to a mile). Using a five barrel cluster, the Hotchkiss is fed with gravity driven magazines, which would be replaced by a gunner's assistant while the gunner operated the elevation and traverse knobs, and kept the main crank running. The original 16 ounce 37 mm cartridges were designed because exploding projectiles that weighed under 14 ounces were prohibited from use because they were deemed 'inhumane'. 30 caliber rounds typically loaded into the Gatling. The 37 mm bore on this example dwarfs the. Versions were designed for field and naval use in 37 mm, 47 mm, and 53 mm. The Hotchkiss revolving cannons were Gatling inspired artillery pieces invented in 1872 by Benjamin B.

Hotchkiss revolving cannon blueprints