Microscope
date: label: date made
content: ca 1925
name: label: maker
content: Ernst Leitz
notes: label: Description
content: This Leitz Model CM is a compound monocular microscope designed for petrographic work. It has coarse and fine focus, circular mechanical stage, inclination joint, sub-stage polarizer, sub-stage mirror, curvaceous V-shaped base, and wooden box with extra objectives. The objective lens has an iris diaphragm. There is an anastigmatic analyzer with an Ahrens prism and an Amici-Bertrand lens in the centering mount. The inscription on this example reads “Ernst Leitz / Wetzlar / No 218885 / Germany.” The serial number indicates a date of 1922.
label: Description
content: This was used by such Smithsonian curators of Mineralogy as George P. Merrill (1854-1929) and William F. Foshag (1894-1956).
label: Description
content: Ref: Ernst Leitz, <i>Petrological and Metallographic Microscopes </i> (Wetzlar, 1910), pp. 14-17.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Hesse, Wetzlar
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Biological Sciences
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content: Microscopes
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content: Science & Mathematics
creditLine: label: Credit Line
content: Department of Paleobiology, National Museum of Natural History, Smithsonian Institution
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2002.0214.1
label: catalog number
content: 2002.0214.01
label: accession number
content: 2002.0214
objectType: label: Object Name
content: petrographical microscope
physicalDescription: label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 33.5 cm x 13.5 cm x 19.2 cm; 13 3/16 in x 5 5/16 in x 7 9/16 in