This is a large compound monocular with rack-and-pinion, fine focus located near the nosepiece, inclination joint, mechanical stage, achromatic condenser, large sub-stage mirror, tri-leg base, mahogany case, and box of accessories. The “JAS SMITH / LONDON” inscription on the foot refers to a mathematical instrument maker who began making microscopes for the trade in the 1820s, making microscopes under his own name around 1840, and trading as Smith & Beck in 1847. This example, serial number 60, resembles the one that Smith made for the Microscopical Society of London in 1840.
Ref: G. L’E. Turner, The Great Age of the Microscope (Bristol, 1989), pp. 171-172.
Currently not on view
Object Name
date made
ca 1843
Smith, James
Physical Description
metal (overall material)
brass (overall material)
glass (overall material)
overall: 37.8 cm x 22.5 cm x 33.7 cm; 14 7/8 in x 8 7/8 in x 13 1/4 in
place made
United Kingdom: England, London
ID Number
catalog number
accession number
Science & Scientific Instruments
Science & Mathematics
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History, Kenneth E. Behring Center

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