Seismograph
name: label: Collection Author
content: Stong, C.L., 1902-1975 (electrical engineer)
setName: label: See more items in
content: C.L. Stong Papers
unitdate: label: Date
content: July-1957
container: label: Container
content: Box 7
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials