| Description | One file of completed Air Ministry Meteorological Office forms including: Form 2804 Account of Radiosonde Transmitters; Form 2807 Radio Sounding Balloon Failures 1958; Form 2807 Radio Sounding Balloon Failures.
One file consisting of: Completed Air Ministry Meteorological Office Radio Sounding Performance, Balloon Performance, form 2805, 1957; completed Sounding Failures forms, 1957; 1958 data tables. |