Dutch motor tug annex fire fighting vessel D.M.S. 6 1950-

Owned by the Droogdok Maatschappij Soerabaja, Amsterdam, Netherlands. Built by the Droogdok Maatschappij Soerabaja, Soerabaja, Indonesia in 1950. Call sign PDRA. Horsepower 200hp and speed 8 knots. Gross register tonnage 39 tons, net register tonnage 2 tons, bunker capacity 4 tons and as dimensions 17,34 x 4,70 x 2,02 metres or 56.11 x 15.5 x 6,8 feet.

Source
Moormans Jaarboek 1958.