Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence

A file of signals intelligence reports, messages, and correspondence issued by the Government Code and Cypher School and sent by the head ('C') of the Secret Intelligence Service (MI6) to the Prime Minister, Winston Churchill. This file includes the following reports: BONIFACE summaries for Mr Loxley (see also 6528); on Italy: a German report of the Polish flag flying over the Cassino monastery, on May 18; that the 94th Division's front line indicates an Allied advance of 4-5 miles, on May 18; that air raids on Piombino cause damage and destruction to many small vessels, on May 17; that Allied air raids on Elba cause devastation, on May 17; of severe rail damage caused in air raids on Perugia and Ancona, on May 18; of the German Army's difficulties in bringing up supplies from Armyn Forward Supply Bases, on May 15; on the German defence position at the western point of the Gulf of Gaeta, on May 18; of Allied artillery hampering German forces regrouping south-east of Pontecorvo; that the 26th Panzer Division moved from the bridgehead to a position on the west coast on the night of May 17-18; that the 188th Division took over the sector of the 278th Division in the Coastal Sector in Istria, on May 18; that the 305th Infantry Division has transferred from the Adriatic Coastal Sector to the Pastena area west of Cassino; that the 15th Panzer Grenadier Division is to take over a position from the 71st Division south of the Liri River; and the Germans report nausea and vomiting being caused by the detonation of new Allied smoke shells, with samples to be taken for chemical analysis.