Dumpy Level
name: label: maker
content: Elliott Brothers
notes: label: Description
content: This level marked "Elliott Bros, London" was made between 1854, when Elliott Brothers began using this form of signature, and 1916, when the firm became Elliott Bros. (London) Ltd. Unlike most American levels of the period, this example is provided with a magnetic compass. The floating ring that holds the needle is made of aluminum, graduated to 30 minutes, and read against a pin outside the compass box. This level was probably used or repaired in California: a label in the wooden case reads "John Roach, Optician, 129 Montgomery Street, San Francisco."
label: Description
content: Ref: Elliott Brothers, <i>General Illustrated Catalogue, with Supplementary Lists, of Philosophical, Optical, and Mathematical Instruments</i> (London, about 1867), p. 4 and Fig. 5.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Surveying and Geodesy
label: See more items in
content: Measuring & Mapping
publisher: label: Related Publication
content: Elliott Brothers. General Illustrated Catalogue, with Supplementary Lists, of Philosophical, Optical, and Mathematical Instruments
creditLine: label: Credit Line
content: Betty Lou and Howard L. Payne
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1989.0482.01
label: catalog number
content: 1989.0482.01
label: accession number
content: 1989.0482
objectType: label: Object Name
content: dumpy level
physicalDescription: label: Measurements
content: telescope: 7 1/8 in x 4 5/16 in x 15 in; 18.0975 cm x 10.95375 cm x 38.1 cm
label: Measurements
content: case: 8 1/8 in x 5 5/8 in x 18 in; 20.6375 cm x 14.2875 cm x 45.72 cm
label: Measurements
content: overall in case: 8 1/8 in x 18 in x 5 7/8 in; 20.6375 cm x 45.72 cm x 14.9225 cm