This compound monocular is a Spencer Model 30 designed for research and clinical work of the most exacting character. It has coarse and fine focus, triple nosepiece, large square stage, inclination joint, sub-stage illuminating apparatus, sub-stage mirror, horseshoe base, and wooden box. The inscription reads “Spencer Microscope / ALOE CO. Sales Agents / No 26578.” The back of the arm is marked “PAT. DEC. 11-1900” and “Aug. 38-1906.” The serial number indicates a date of 1916. The mechanical stage is marked ‘BAUSCH & LOMB.”
This was used by the donor’s father, Orra Edgar Patterson (1879-1937), a physician in the Pacific Northwest, and by his sister, Virginia Patterson Beeler (b. ca. 1913), a physician in Washington, D.C.
Ref: Spencer Lens Co., Spencer Microscopes and Accessories (Buffalo, 1914), pp. 16-27.
Hermann Zirngibl, “Microscope,” U.S. Patent 663,649 (Dec. 11, 1900).
Harry N. Ott, “Microscope,” U.S. Patent 829,422 (Aug. 28, 1906).
Currently not on view
Object Name
date made
Spencer Lens Company
case: 14 1/8 in x 7 1/4 in x 7 7/8 in; 35.8775 cm x 18.415 cm x 20.0025 cm
microscope: 11 1/8 in x 5 1/4 in x 6 1/4 in; 28.2575 cm x 13.335 cm x 15.875 cm
place made
United States: New York, Buffalo
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
Bryon Patterson

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