Circumferenter
notes: label: Description
content: James McCann, of Newmarket, Va., received a U.S. patent (#519) for a surveying instrument on Dec. 20, 1837. This is probably the model he submitted with his patent application.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.308901
label: catalog number
content: 308901
label: accession number
content: 89797
label: patent number
content: 519
objectType: label: Object Name
content: circumferenter
label: Object Type
content: Patent Model
physicalDescription: label: Measurements
content: overall brackets folded down: 2 5/8 in x 12 3/8 in x 3 5/8 in; 6.6675 cm x 31.4325 cm x 9.2075 cm