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Catalogue reference: HW 14/33
This record is about the EWT to DMI on UK future military Sigint cover plans, letter from EWT to DMI requesting... dating from 1942 Apr 1-10 in the series Government Code and Cypher School: Directorate: Second World War Policy Papers. It is held at The National Archives, Kew.
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HW 14/33
1942 Apr 1-10
EWT to DMI on UK future military Sigint cover plans, letter from EWT to DMI requesting assistance in GCCS recruitment; minutes of first meeting of Heads of Sections Apr 1, agenda and minutes of BP domestic meeting on Apr 6; first fortnightly notes from AS, AD (S) requests similar reports in future from Naval and Military Sections; 2 pages of complaints from FV Freeborne, Head of Machine Room Hut 7, to EWT on shortage of personnel and poor working conditions in Hut 7, staff numbers and shifts worked; figures for AS personnel working 2-shift system; Hut 3 officer liaison visits to WO; organisation of NS as at Apr 7; table illustrating proportion of Bombe processing time spent on various E keys during March; specimen new SALU Sigint report with requests for customer comments, GAF fighter defence operations on Western Front; argument for full dress rehearsal for GCCS detachment to GHQ in event of invasion of UK, letter from EWT to C asking permission to go ahead Apr 5, critique Apr 6; minute from AGD to EWT quoting amount of diplomatic intercept and making case for more diplomatic cover; chart illustrating all Sigint channels linking GCCS with authorities overseas; GCCS report on visit to PO station at Whitchurch; critique on GCCS contingency detachment to GHQ; GCCS visit to RAF Innsworth to select suitable WAAFs for Sigint work; electrical work to be done at Gayhurst, near Newport Pagnell, requisitioned accommodation for BP Wrens; contentious report by MI-6 officer on an Italian W/T network, criticising work of GCCS; liaison with Canada, Russia and Shaw at Colombo; Germans capture cypher system of Russian agents and send deception messages to Russia; correspondence with CBME, diagram illustrating ME Sigint organisation, list of Sigint staff in ME, 2 ISOS cryptographers posted to Cairo, formation of 54 WU in ME, names of personnel posted to complete staffing, AS and AM AI 4 correspondence on proposed Sigint field units in ME; Sigint reporting at Cheadle
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Government Code and Cypher School: Directorate: Second World War Policy Papers
EWT to DMI on UK future military Sigint cover plans, letter from EWT to DMI requesting...
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