The 10"/31 caliber gun Mark 1 Mod 1 and the 10"/35 caliber gun Mark 1 Mod 2 were both used for the primary batteries of the United States Navy's Amphitrite-class monitor Miantonomoh. The 10"/30 caliber gun Mark 2 was used as main armament on the remaining Amphitrite-class monitors, the monitor Monterey, and the armored cruiser Maine.
Fitting one of the 10-inch main guns to the front turret of USS Miantonomoh (BM-5) at the New York Navy Yard, circa 1890.
The Amphitrite-class monitors were a class of four U.S. Navy monitors ordered in the aftermath of the Virginius affair with Spain in 1873. The four ships of the class included Amphitrite, Monadnock, Terror, and Miantonomoh. A fifth ship originally of the same design, Puritan, was later fitted with extra armor and designated as a unique class.
USS Monadnock, a monitor of the Amphitrite class, crossing the Pacific Ocean during the Spanish–American War.
USS Monadnock prior to her launch at the Burgess shipyard, Vallejo, California, 19 September 1883. Monadnock is the only known ship to have been built by Burgess.
Fitting the main guns to a turret of USS Miantonomoh at the New York Navy Yard, circa 1890
USS Amphitrite, lead ship of the Amphitrite class, at the Boston Navy Yard, 1890s
