Pendulum Quadrant
name: label: maker
content: Dorffel & Faerber
notes: label: Description
content: This is an aluminum quadrant of 9-inches radius, with an arc that extends from -10 to +90 degrees, and is graduated every degree. The primary inscription reads “DÖRFFEL & FAERBER / BERLIN” with a “D&F” logo below. Another reads “U.S.W.B. / N° 2.”
label: Description
content: Dörffel & Faerber worked in Berlin, Germany, specializing in optical and opthalmological instruments.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Berlin, Berlin
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Measuring & Mapping
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.314566
label: catalog number
content: 314566
label: accession number
content: 204612
objectType: label: Object Name
content: quadrant
physicalDescription: label: Measurements
content: radius: 9 in; 22.86 cm
label: Measurements
content: overall in case: 1 1/2 in x 12 1/4 in x 12 3/4 in; 3.81 cm x 31.115 cm x 32.385 cm