This Bausch & Lomb model LC is a compound monocular designed for petrographic work. It has coarse and fine focus, inclination joint with locking handle of celluloid, triple nosepiece (one missing in this example), large circular stage with vulcanite top, adjustable mirror bar, and Nicol prisms for polarizer and analyzer. The inscription on the black horseshoe base reads “Bausch & Lomb Optical Co. / ROCHESTER, N.Y.” The 47930 serial number on the back of the base suggests a date around 1904.
Ref: Bausch & Lomb, Microscopes and Accessory Apparatus (Rochester, N.Y., 1904), pp. 42-43.
Currently not on view
Object Name
date made
ca 1904
Bausch & Lomb
Physical Description
metal (overall material)
glass (overall material)
brass (overall material)
overall: 39.4 cm x 10.6 cm x 17 cm; 15 1/2 in x 4 3/16 in x 6 11/16 in
place made
United States: New York, Rochester
ID Number
accession number
catalog number
Science & Mathematics
Science & Scientific Instruments
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Bausch & Lomb Optical Company

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