Microscope

Description
This modest compound monocular is an example of Tolles’ Student’s Microscope with rack-and-pinion, trunnion, square stage, Lister limb with sub-stage mirror, wheel of apertures to adjust the light cone coming up through the specimen, curvilinear tri-leg base, and wooden box. The base, uprights and arm are iron, japanned black. The inscription on the tube reads “TOLLES Boston” and the serial number 242 appears on the underside of the stage. There are three objective lenses: one Tolles, one Murray & Heath, and one unmarked.
Robert B. Tolles (1823-1883) apprenticed with Charles A. Spencer, became supervisor of the Boston Optical Works in 1867, and sole proprietor of the firm in 1872.
Ref: Boston Optical Works, Microscopes and Telescopes (Boston, 1883), pp. 3-5.
Deborah J. Warner, “The Microscopes and Telescopes of Robert B. Tolles,” Rittenhouse 9 (1995): 65-83.
Location
Currently not on view
Object Name
microscope
date made
ca 1880
maker
Tolles, Robert B.
Measurements
overall: 15 5/8 in x 5 5/8 in x 6 3/4 in; 39.6875 cm x 14.2875 cm x 17.145 cm
place made
United States: Massachusetts, Boston
ID Number
MG*M-09704.01
catalog number
M-9704
accession number
227740
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Medicine
Microscopes
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center

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