German tug Anna built at Delfshaven, Netherlands in 1903 according to the Dutch magazine Scheepvaart dated 30 December 1903

A list of the ships launched in 1903 reported the German tug Anna of 48 tons by Scheepsbouwwerf en Machinafabriek Delftshaven. H. de Ridder, Rotterdam, Netherlands for account of Carl Grech, Ruhrort, Germany.