Source: Fleets of the world 1915. Compiled from official sources and classified according to types
Iron Duke type. Launched in 1912, completed in 1914, displacement 25.000 tons, horsepower 29.000 hp, coal-fired turbine direct drive machinery and an armament of 10-3.5“ guns, 12-6“ guns, 2-3“ anti aircraft guns, 1-12pd field guns, 19-3pd guns and machineguns and 4 submerged torpedo tubes.
Source
Archive Dutch Naval Staff 1886-1942 (National Archive at the Hague, Netherlands) inventory number 155. Fleets (the British Empire and foreign countries) on 1 February 1923.