Bausch & Lomb introduced their Physician’s microscope in 1877, boasting that it was “firm and well balanced” and well adapted “to the use of physicians and students.” The stand and case cost $40; with two objectives and camera lucida it cost $65. Ernst Gundlach, the Prussian immigrant who had become superintendent of the firm’s new microscope department in 1876, was largely responsible for the form.
This is an example of the modified version that the firm brought out in 1884. It is a compound monocular with coarse and fine focus, double nosepiece (one missing), rectangular stage, inclination joint, sub-stage diaphragm, sub-stage mirror, and curvaceous base. The tube and limb are brass; the base is black iron; the stage is heavy glass. The inscription on the stage reads “BAUSCH & LOMB OPTICAL CO.” That on the arm reads “PAT. OCT. 3. 1876 / PAT. OCT. 13, 1885.”
Ref: Bausch & Lomb, Price List of Microscopes, Objectives and Accessories (Rochester, 1884), pp. 14-15.
Ernst Gundlach, “Microscopes,” U.S. Patent 182,919 (Oct. 3, 1876).
Edward Bausch, “Microscope,” U.S. Patent 328,277 (Oct. 13, 1885).
Currently not on view
Object Name
date made
ca 1886
Bausch & Lomb
Physical Description
metal (overall material)
glass (overall material)
brass (overall material)
overall: 33.1 cm x 15 cm x 15 5/16 in; 13 1/16 in x 5 7/8 in x 38.862 cm
place made
United States: New York, Rochester
ID Number
accession number
catalog 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
Credit Line
Bausch & Lomb Optical Company

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