An item reported the completion of 2-55 feet coastal motor boats in 1921 with 750 hp horsepower, internal combustion gasoline or petrol fuelled machinery and an armament of 4 machineguns and 2 torpedoes.
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.
