Low frequency indicating instruments
name: label: Collection Creator
content: Clark, George Howard, 1881-1956
setName: label: See more items in
content: George H. Clark Radioana Collection
label: See more items in
content: George H. Clark Radioana Collection / Series 93: Low Frequency Indicating Instruments
unitdate: label: Date
content: 1904-1946
container: label: Container
content: Box 278, Folder 3
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials