Marshal Ney-class monitor
The Marshal Ney class was a class of monitor built for the Royal Navy during the First World War.
Marshal Ney with guns trained to starboard
Marshal Ney underway 26 August 1915
A monitor is a relatively small warship that is neither fast nor strongly armored but carries disproportionately large guns. They were used by some navies from the 1860s, during the First World War and with limited use in the Second World War.
USS Monitor, the first monitor (1861)
HMS Marshal Ney used a surplus 15-inch gun battleship turret.
Officers of a Union monitor, probably USS Sangamon, photographed during the American Civil War
Huáscar anchored in the harbour at Talcahuano