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Olga Gray and the Woolwich Arsenal Spy Ring
Piece
Catalogue reference: ADM 220/1037
This record is about the Aid to alignment of electronic marks on CRT displays dating from 1951 in the series Admiralty: Admiralty Surface Weapons Establishment and predecessors: Records. It is held at The National Archives, Kew.
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Aid to alignment of electronic marks on CRT displays
ADM 220
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Aid to alignment of electronic marks on CRT displays
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