Launched in 1915, completed in 1918, displacement 488 (surfaced)-675 (submerged) tons, horsepower 840 (surfaced)-690 (submerged), oil fired internal combustion machinery (surfaced) and electric machinery (submerged) and an armament of none(?). Suitable only for coastal defence. For sale.
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