Het Stoomgemaal te Spaarndam, links masten en zeilen van schepen, Willem Hekking, 1845

The steam pumping station in spaarndam, on the left masts and sails of ships. 1 topogr. Drawing: pen in brown, brush in black and gray pen in brown, brush in black and gray, over sketch in pencil bottom left: w. Hekking jr. 116x190mm comments preliminary drawing for lithograph, see spaarndam 005. The steam pumping station in spaarndam spaarndam 004. Date: 1845.