This is a compound monocular with coarse and fine focus, double nosepiece, large square stage covered with vulcanite, inclination joint, sub-stage mirror on moveable arm, horseshoe base, and wooden box with extra objectives. The “E. LEITZ WETZLAR / No 28939” inscription indicates a date of 1893.
William Rush Dunton, Jr. (1868-1966) acquired this microscope in 1894, after graduating from the University of Pennsylvania Medical School and before beginning a residency at the Johns Hopkins Hospital. Dr. Dunton later promoted physical therapy for psychiatric patients, and called attention to his familial connections with Benjamin Rush, Philadelphia physician and signer of the Declaration of Independence.
Currently not on view
Object Name
date made
ca 1894
Ernst Leitz
Physical Description
brass (overall material)
metal (overall material)
glass (overall material)
plastic (overall material)
overall: 29.3 cm x 8.8 cm x 14.8 cm; 11 17/32 in x 3 15/32 in x 5 13/16 in
place made
Deutschland: Hessen, Wetzlar
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
Mrs. Edward Furst
Additional Media

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