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Letters from the curator of St Vincent Botanic Gardens
Piece
Catalogue reference: HO 255/398
This record is about the Balloon mounted transmitters: frequency allocations in Band III dating from 1959 in the series Post Office and Successors: Radio Regulation (P, RB and RD Series) Files. It is held at The National Archives, Kew.
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HO 255/398
1959
Balloon mounted transmitters: frequency allocations in Band III
FILE REF. RD GR/16
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Open Document, Open Description
HO 255
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Records created or inherited by the Home Office, Ministry of Home Security, and related...
Post Office and Successors: Radio Regulation (P, RB and RD Series) Files
Balloon mounted transmitters: frequency allocations in Band III
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