This is a stereoscopic instrument with coarse and fine focus, square stage, sub-stage diaphragm, sub-stage mirror, and wooden box with extra lenses. The inscriptions read “CARL ZEISS / JENA” and “GERMANY” and “215763.” A property tag reads “U.S.N.M. / Division of Marine Invertebrates / SMITHSONIAN INSTITUTION / 31969.”
Zeiss began marketing stereoscopic microscopes in 1897, noting that the idea had originated with Horatio Saltstall Greenough (1845-1916), an American zoologist and, incidentally, son of the sculptor, Horatio Greenough. Zeiss introduced this model XA stand in the early 1930s.
Ref: “Greenough’s Stereoscopic Microscope and Its Auxiliary Appliances,” Journal of the Royal Microscopical Society 18 (1898): 469-473.
Carl Zeiss, Zeiss Microscopes and Accessories (Jena, 1934), pp. 71-72.
Currently not on view
Object Name
date made
ca 1930
Zeiss, Carl
Physical Description
glass (microscope material)
metal (microscope material)
wood (case material)
microscope: 32.8 cm x 13.8 cm x 18.5 cm; 12 15/16 in x 5 7/16 in x 7 5/16 in
case: 36.9 cm x 25.1 cm x 23.4 cm; 14 1/2 in x 9 7/8 in x 9 3/16 in
place made
Deutschland: Thüringen, Jena
ID Number
accession number
catalog number
Science & Scientific Instruments
See more items in
Medicine and Science: Medicine
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Division of Marine Invertebrates, National Museum of Natural History, Smithsonian Institution

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