Abercrombie-class monitor
The Abercrombie class of monitors served in the Royal Navy during the First World War.
The starboard profile of HMS Abercrombie off Gallipoli in July 1915
The 14-inch (356 mm) gun turret of an Abercrombie-class monitor during World War I. It mounted two 14-inch (356 mm) Mark II guns.
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