Dutch tug De Zaan built at Rotterdam, Netherlands in 1911 according to the Dutch magazine Scheepvaart dated 10 January 1912

A list of the ships launched in 1911 reported the Dutch tug De Zaan of 28 tons built by Machinefabriek Delftshaven, H. de Ridder, Rotterdam, Netherlands for account of Ales&Meinen, Zaandam, Netherlands.