seismograph, refraction
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Agriculture and Natural Resources
creditLine: label: Credit Line
content: Humble Oil and Refining Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: AG.MHI-P-7685 [dup1]
label: catalog number
content: MHI-P-7685
label: accession number
content: 230370
objectType: label: Object Name
content: Seismograph, Refraction