A starboard bow view of the steam tug Henriette S.M. Goedkoop (1869) under way on the North Sea Canal at Velsen, west of Amsterdam, the Netherlands. She is acting as the steerage tug at the stern of a passenger ship, on which the photographer was taking passage. The Hembrug revolving swing bridge which carries the Amsterdam to Zaandam railway is open in the background. The district of Velsen is on the left.