Hydrometer in mahogany case with four weights
1805-1830
Boxfoot botanic microscope by Banks
1790-1810
Small mahogany box containing small lenses and coloured filters
1805-1830
Boswell's parallel rule
1805-1830
Boxfoot Microscope, 1820-1840
1820-1840
Electrostatic machine, London, England, 1801-1820
1801-1820
Theodolite in wooden case
1852
Solar microscope in case
1790-1810
selection of 8 sets of diffraction rulings on polished steel
1820-1829
Brass camera lucida
1820-1830
Orrery planetary model by Banks, 1776-1780
1776-1780