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Olga Gray and the Woolwich Arsenal Spy Ring
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Catalogue reference: HO 227/61
This record is about the Annuli for calculation of prompt casualties from groundburst bombs dating from 1962 in the series Home Office: Scientific Adviser's Branch and successors: Reports (SA/PR Series). It is held at The National Archives, Kew.
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Annuli for calculation of prompt casualties from groundburst bombs
HO 227
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Annuli for calculation of prompt casualties from groundburst bombs
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