The 12-inch/45-caliber Mark 5 gun was an American naval gun that first entered service in 1906. Initially designed for use with the Connecticut-class of pre-dreadnought battleships, the Mark 5 continu
Mark 5 gun being hoisted aboard USS Connecticut
After six Mark 5 guns aboard USS Delaware, c. 1913.
View looking aft along the port side, showing barrel of burst 12-inch gun on deck with the gun's rear portion in Turret # 2. Photographed at the Philadelphia Navy Yard, Pennsylvania, 25 September 1916. Note holes in superstructure and in the "cage" foremast caused by this accident.
Two South Carolina-class battleships, also known as the Michigan class, were built for the United States Navy in the early twentieth century. Named South Carolina and Michigan, they were the first Ame
12-inch/45-caliber Mark 5 gun
…Mississippi-class South Carolina-class Delaware-class…
Michigan at a naval review off New York City, October 1912
The South Carolina design began in the United States' previous pre-dreadnought battleships, such as the preceding Connecticut class (New Hampshire pictured)
Michigan dressed with flags for a naval review off New York, 3 October 1911