Liquid Compass
date: label: date made
content: 1877
name: label: maker
content: Ritchie
notes: label: Description
content: The Ritchie ledgers, now held by Ritchie Navigation, indicate that this compass was manufactured on August 11, 1877, and sold to T.S. & J.D. Negus, a New York firm that sold a variety of nautical and optical instruments. It later belonged to the U.S. Coast & Geodetic Survey. The inscriptions read "RITCHIE BOSTON U.S.A." and "PATENTED APL. 7. 1863. APL. 10, 1866. MAY 12, 1868. JULY 19, 1870" and "9786."
label: Description
content: Ref: E. S. Ritchie & Sons, <i>Ritchie’s Liquid Compasses and Nautical Instruments</i> (ca. 1905).
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Boston
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Navigation
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Coast & Geodetic Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.337138
label: catalog number
content: 337138
label: accession number
content: 1979.0361
objectType: label: Object Name
content: Nautical Compass (Liquid)
physicalDescription: label: Measurements
content: overall: 3 3/4 in x 5 3/4 in; 9.525 cm x 14.605 cm
label: Measurements
content: overall: 4 in x 6 in; 10.16 cm x 15.24 cm