Ponjaard, pareerstang eindigend in…

Jacobus Coenraads (Senior), c. 1810 - c. 1830, poniard, NG-2002-23-253

Model of a Ladder

Petrus van der Loo, c. 1850, demonstration model, NG-MC-76

Model of Part of a Made Topmast

anonymous, 1821, demonstration model, NG-MC-158

Model of the Head of the Masting…

Rijkswerf Rotterdam, c. 1818, demonstration model, NG-MC-38

Gunlock (Percussion)

anonymous, 1830 - 1834, percussion lock, NG-MC-713

Model of Disengaging Gear for an…

anonymous, 1852, demonstration model, NG-MC-144

Model of a Lifeboat Release

Rijkswerf Vlissingen, c. 1857 - c. 1858, demonstration model, NG-MC-635

Sounding Lead

John Ericsson, c. 1836 - c. 1860, sounding lead, NG-MC-1018

Two Samples of Telegraph Cable for…

Matthew Fontaine Maury (possibly), c. 1866, sample, NG-MC-1191

Model of a Stopper and Bitts

Rijkswerf Amsterdam, 1854, demonstration model, NG-MC-626