interchangeable part for drawing instrument
notes: label: Description
content: This item is part of the set of drawing instruments owned and used by Samuel Pierpont Langley, the astrophysicist who served as the third Secretary of the Smithsonian Institution.
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.161972.12
label: catalog number
content: 161972.12
label: accession number
content: 161972
objectType: label: Object Name
content: interchangeable part for drawing instrument
physicalDescription: label: Measurements
content: overall: 3 1/2 in x 1/4 in x 1/4 in; 8.89 cm x .635 cm x .635 cm