CAPTION CORRECTION: The ID in image numbers 537925576, 537925074, 537925066, 537922542, 537922502, 537921454 . Please revise caption, we referred to the Wrens as codebreakers, this is incorrect and caption should read Colossus operators We apologize for any inconvenience. BLETCHLEY, ENGLAND - JUNE 03: Former "Wrens" - members of the Women's Royal Naval Service and codebreakers at Bletchley Park, (L-R) Irene Dixon, Lorna Cockayne, Shirley Wheeldon, Joanna Chorley and Margaret Mortimer pictured in front of a Colossus computer at The National Museum of Computing on June 3, 2016 in Bletchley, England. During World War II British codebreakers helped decypher the German Army's Lorenz cypher using the Colossus computer and Tunny machine at the Government Code and Cypher School's (GC&CS) main codebreaking centre, Bletchley Park. The machines at Bletchley Park's Block H, the world's first purpose-built computer centre, helped gather crucial intelligence for the British military during the war. (Photo by Jack Taylor/Getty Images)
