
Radiosonde, 1950s

Description
Photograph of a radiosonde. The lid of the case is open. The hand of Delbar Pouleur Keily points to an interior mechanism with a pencil. Original caption: "Air pressure measurement device in a radio sonde which is used to sound the atmosphere to heights exceeding 100,000 ft."
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Delbar Pouleur Keily with radiosonde, 1950s
Same series - GCP-00013121

Delbar Pouleur Keily with radiosonde, 1950s
Same series - GCP-00013122