[Machine to test the radiation in tubes, black-and-white photoprint.]
odd: label: Local Numbers
content: AC0055-0000041.tif (AC Scan)
name: label: Collector
content: Clark, George H.
label: Collection Creator
content: Clark, George Howard, 1881-1956
topic: label: Topic
content: Radiation
label: Topic
content: Radio -- Production and direction
creator: label: Collector
content: Clark, George H.
setName: label: See more items in
content: George H. Clark Radioana Collection
label: See more items in
content: George H. Clark Radioana Collection / Series A: Thomas Coke KnightT RCA Photographs, circa 1902-1950 / 1.9: Research and Manufacturing / Tube testing
physdesc: label: Extent
content: 1 Item (Silver gelatin on paper., 8.0" x 9.8".)
unitdate: label: Date
content: undated
container: label: Container
content: Box 424, Folder 1
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs
genre_format: label: Genre/Form
content: Photographs -- 1930-1940 -- Black-and-white photoprints -- Silver gelatin