Box battery
The box battery disposition of the main armament in a battleship was commonly used in ships built in the latter half of the 19th century; it was an interim disposition between full length broadside guns and turret-mounted artillery.
From the first time that artillery was carried aboard warships, in the early Tudor period, until the middle of the 19th century, warships had carried their cannon in long rows along their sides. Bigger ships had carried more and bigger cannon, culminating in wooden line-of-battle ships carrying some 140 muzzle-loading smoothbore cannon, 70 on each side.