U.S. Study Group 7, International Radio Consultative Committee (CCIR) Materials
name: label: Collection Creator
content: Chi, Andrew
setName: label: See more items in
content: Andrew Chi Atomic Clocks Collection
unitdate: label: Date
content: 1964-1980
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.1264, Series 1
objectType: label: Type
content: Archival materials