Vacuum Gauge

E. Bourdon, c. 1860, measuring instrument, NG-MC-1062

Artificial Horizon

anonymous, anonymous, anonymous, c. 1830 - c. 1865, measuring instrument, NG-MC-1031

Decimal Scale

D. van den Bosch, 1821, measuring instrument, NG-MC-858

Correction Circle

optician, 1820 - 1825, measuring instrument, NG-MC-879

Log Timer

Rasmus Dekker, c. 1795 - c. 1812, measuring instrument, NG-MC-885

Salinometer

A.P. How, 1850 - 1865, measuring instrument, NG-MC-1060

Decimal Scale

D. van den Bosch, 1821, measuring instrument, NG-MC-857

Polarising Filter

John Benjamin Dancer, c. 1880, measuring instrument, NG-MC-1409

Metronome

Christiaan Welmeer, 1803, musical instrument, BK-NM-8936

On display in room 1.10

Graadboogje

anonymous, 1850 - 1900, measuring instrument, NG-2012-17