Microbalance
date: label: date made
content: around 1920
name: label: maker
content: Keller, George P.
notes: label: Description
content: Microbalance in wood case with glass panels. The balance is brass; the pans are nickel; the indicator is ivory. The inscriptions on a small brass circle read “G. P. KELLER / MAKER" and "SALT LAKE CITY / UTAH U.S.A.” There are three boxes of weights. One is marked "no. 175-B / WM. AINSWORTH & SONS / DEVER, COLO. U.S.A." One has a paper tag reading "E. O. Leonard."
label: Description
content: George P. Keller was a German immigrant who established a firm in the Rocky Mountain area in response to the need for assay balances in the mining business.
place: label: place made
content: United States: Utah, Salt Lake City
topic: label: Subject
content: Weights & Measures
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of June W. Leonard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1991.0691.01
label: catalog number
content: 1991.0691.01
label: accession number
content: 1991.0691
objectType: label: Object Name
content: Microbalance
physicalDescription: label: Physical Description
content: glass (overall material)
label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 34.3 cm x 13.9 cm x 15.8 cm; 13 1/2 in x 5 1/2 in x 6 1/4 in