The Spencer Model 58S is a binocular dissecting microscope with goose neck arm, rack-and-pinion focus, and wrought iron horseshoe base. The form was new in 1917. This example dates from around 1923. The eyepiece is marked “SPENCER / BUFFALO / USA / 79239” and the stage is missing.
Ref: Spencer Lens Co., Catalog of Spencer Products (Buffalo, N.Y., 1917), pp. 62-63.
Spencer Lens Co., Catalog of Spencer Products (Buffalo, N.Y., 1924), p. 38.
Object Name
date made
ca 1923
Spencer Lens Company
Physical Description
metal (overall material)
glass (overall material)
black (overall color)
casting (overall production method/technique)
machining (overall production method/technique)
average spatial: 21.3 cm x 14.6 cm x 20 cm; 8 3/8 in x 5 3/4 in x 7 7/8 in
place made
United States: New York, Buffalo
ID Number
accession number
catalog number
Science & Scientific Instruments
See more items in
Medicine and Science: Medicine
Science & Mathematics
Medical History
Exhibition Location
National Museum of American History
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Division of Mineralogy and Petrology, United States National Museum, Smithsonian Institution
Additional Media

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