Prism Binoculars
date: label: date made
content: ca 1900
name: label: maker
content: Zeiss
notes: label: Description
content: Brass binoculars covered, in large part, with dark leather. The exposed parts have a black japan finish. The objective lenses are 2.2 cm diameter. The eye end of the left prism housing is marked “Stereo-Jumelle / Zeiss No 2951 / BTE S.G.B.G.” in cursive script. That on the right is marked “E. Krauss & Cie Paris” also in cursive. The field end of the right prism housing is marked “Agent / J. H. Steward / London” and scratched “4329.” The “8” on the top of the center post may refer to the power of the piece. The eyepieces are separately adjustable as is the inter-ocular distance.
label: Description
content: Carl Zeiss, Jena, began making prism binoculars in 1894, based on the design developed by Ernst Abbe. E. Krauss of Paris was licensed to assemble and sell instruments of this sort, using Zeiss optics.
label: Description
content: Ref: Krauss ad in <i>L’Industrie Francaise des Instruments de Precision</i> (Paris, 1901-1902).
label: Location
content: Currently not on view
place: label: place made
content: Germany: Thuringia, Jena
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Science & Mathematics
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content: Optics
creditLine: label: Credit Line
content: Nicholas Grossman
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0001.01
label: accession number
content: 1982.0001
label: catalog number
content: 1982.0001.01
objectType: label: Object Name
content: binoculars
physicalDescription: label: Measurements
content: closed: 13 13/32 in x 10 11/16 in; 34.036 cm x 27.178 cm
label: Measurements
content: overall: 2 1/4 in x 5 1/8 in x 4 5/16 in; 5.715 cm x 13.0175 cm x 10.95375 cm