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The National Bureau of Standards transferred this unmarked box containing parts relating to radio transmission to the Smithsonian in 1950. It is apparently connected with the first experimental radiosonde developed by H. Diamond, W. S. Hinman, Jr., and F.W. Dunmore at the Bureau and first used on 25 December 1936.
Currently not on view
Object Name
overall: 6 1/4 in x 9 5/16 in x 7 1/4 in; 15.875 cm x 23.65375 cm x 18.415 cm
overall: 7 in x 9 in x 6 1/2 in; 17.78 cm x 22.86 cm x 16.51 cm
ID Number
catalog number
accession number
Credit Line
National Bureau of Standards
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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