Vaisala RS21 radiosonde, primary component, serial no 624957-8, for 400 MH3 Meteorological frequency band, by Vaisala Oy, Helsinki, Etelä-Suomen Lääni, Finland, 1971
- Object Number:
- aluminium alloy, asbestos, lead alloy, paper (fibre product), plastic (unidentified), polystyrene, steel (metal)
- furnishing and equipment
- measuring device - instrument
- Meteorological Office
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