Found:


Model of a Crane for Stepping Masts

's Lands Werf Hellevoetsluis (possibly), Rijkswerf Hellevoetsluis (possibly), c. 1790 - c. 1820

Model of a Chain Flange of a…

Rijkswerf Hellevoetsluis (possibly), 1860

Model of a Masting Sheer

Rijkswerf Hellevoetsluis (possibly), c. 1818

Model of a Crane for Stepping Masts

's Lands Werf Hellevoetsluis (possibly), Rijkswerf Hellevoetsluis (possibly), c. 1790 - c. 1820

Model of a Masting Sheer

's Lands Werf Hellevoetsluis (possibly), c. 1797 - c. 1807