Microscope
date: label: date made
content: ca 1885
name: label: maker
content: Bausch & Lomb
notes: label: Description
content: This compound monocular is an example of the American Concentric microscope that Bausch & Lomb brought to market in the mid-1880s. It has coarse and fine focus, circular stage, and tri-leg base. The sub-stage iris diaphragm and mirror can be angled above and below the stage. The body moves, as it were, within a circular arm. The inscriptions on the stage and sub-stage apparatus read “BAUSCH & LOMB OPTICAL CO.” The inscriptions on the arm read “PAT. OCT. 3, 1876” and “PAT. OCT. 13, 1885.” Jacob Dolson Cox, a lawyer, Union Army general, governor of Ohio, Secretary of the Interior, and active microscopist, devised the form.
label: Description
content: Ref: Bausch & Lomb, <i>Price List of Microscopes, Objectives and Accessories</i> (Rochester, 1884), pp. 22-23.
label: Description
content: Ernst Gundlach, “Microscope,” U.S. Patent 182,919 (Oct. 3, 1876).
label: Description
content: Edward Bausch, “Microscope,” U.S. Patent 328,277 (Oct. 13, 1885).
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, Rochester
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Medicine
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content: Microscopes
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content: Science & Mathematics
creditLine: label: Credit Line
content: Bausch & Lomb Optical Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-12189
label: accession number
content: 272522
label: catalog number
content: M-12189
label: catalog number
content: 272522.04
objectType: label: Object Name
content: microscope
physicalDescription: label: Measurements
content: overall: 12 1/4 in x 7 1/2 in x 10 1/2 in; 31.115 cm x 19.05 cm x 26.67 cm