Complete Vaisala radiosonde type RS16, supplied by Vaisala (UK) Ltd, Britain, made by Vaisala Oy, Helsinki, Finland, 1970 Vaisala radiosonde, 1970 1970
Radiosonde, Vaisala RS80 type, one unwrapped, one in sealed foil container Vaisala RS80 type radiosonde,
Vaisala RS21 radiosonde, serial no 624957-8, for 400 MH3 Meteorological frequency band, in two components, with spare battery in sealed pack, by Vaisala Oy, Helsinki, Etelä-Suomen Lääni, Finland, 1971 Vaisala RS21 radiosonde 1971