Captain Walter Fried's Fish Notes reporting back to the US Army in Arlington Hall on British progress in breaking Tunny (Lorenz) and attempting to break Sturgeon (Siemans)

The original documents are held in The American National Archive (NARA) College Campus Washington

NR 803 and 2612 Fish Notes by Walter Fried BOX 174 and 880

Formatted for HTML and PDF by Tony Sale (c) October 2003





INDEX

Fish Notes #F 05 18 March 1944 Fish Notes #F 07 23 March 1944 Fish Notes #F 14 3 April 1944 Fish Notes #F 22 17 April 1944 Fish Notes #F 36 7 May 1944 Fish Notes #F 46 12 June 1944 Fish Notes #F 46 Colossus MK II Fish Notes #F 46 Sturgeon Fish Notes #F 50 21 June 1944 Fish Notes #F 55 2 July 1944 In #71 Annex, Elementary Screed on Delta D Counts and Colossus Runs. Click here for PDF version(30Kb) Go to document start or browse using the INDEX Delta D Counts Details of Techniques Modifying considerations The final 32-letter count Some wrong settings Slides Summary of Techniques Runs in common use Odds on results

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This page is created by Tony Sale (tsale@qufaro.demon.co.uk) the original curator of the Bletchley Park Museum