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Olga Gray and the Woolwich Arsenal Spy Ring
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Catalogue reference: HO 195/12/259
This record is about the Earth movement due to German 250, 500 and 1,000 kg. G. P. bombs exploded below ground,... dating from 1941 Aug in the series Ministry of Home Security: Research and Experiments Department, Civil Defence Research.... It is held at The National Archives, Kew.
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Earth movement due to German 250, 500 and 1,000 kg. G. P. bombs exploded below ground, (ARP/251/HJHS), by H.J.H. Starks. Rotaprinted.
HO 195
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Records created or inherited by the Home Office, Ministry of Home Security, and related...
Ministry of Home Security: Research and Experiments Department, Civil Defence Research...
Numbered papers: RC 251-320. (Described at item level)
Earth movement due to German 250, 500 and 1,000 kg. G. P. bombs exploded below ground,...
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