The top of the breech casing is engraved with : "GATLING GUN PATENTED/Manufactured by/Colt's Pt. F.A. Mfg. Co./HARTFORD, CONN. U.S.A./No 3/Cal 30/H.P.W." The left side has "SERIAL NO. 03 CALIBER .30-06," and the right side has "MODEL 1897." This model utilizes ten barrels. It comes in a crate with one Bruce feed magazine, and a second crate contains the transom. A carriage is not included. A battery of four Colt Gatling guns under Lt. John H. Parker was deployed by American forces during the Spanish-American War and proved effective in supporting the advance at the Battle of San Juan Hill. Gatlings were also employed in the Philippines.