The Bletchley Park Codebreakers (77 page)

Rolf Noskwith, who worked on naval Enigma in Hut 8.

Rolf Noskwith

Enigma C, known at GC&CS as the ‘index machine’.

Public Record Office HW 25/6

Shaun Wylie (who worked on ‘Tunny’) marrying Odette Murray (then a Wren at Bletchley Park also working on ‘Tunny’), in April 1944.

Shaun Wylie

Lorenz
Schlüsselzusatz
SZ42 ‘Tunny’ teleprinter cipher attachment, with cover removed.

Wolfgang Mache

Right: Colossus, the world’s finest first electronic semi-programmable computer, operational at Bletchley Park from December 1943. It was used to break ‘Tunny’.

Bletchley Park Trust

Derek Taunt, who was later a codebreaker in Hut 6, at Jesus College, Cambridge, in June 1939.

Derek Taunt

James Thirsk, log reader in ‘Sixta’, the traffic analysis section of Hut 6.

James Thirsk

Duenna, the US Navy machine which was used to break
Umkehrwalze
D.

National Archives, College Park, Md

Wiring core of the rewireable
Umkehrwalze
D, with pin removed. If ‘D’ had been used properly by the
Luftwaffe
in 1944, it would have dried up Hut 6 Ultra.

Philip Marks

US Navy four-rotor bombe, with WAVE. Note the eight vertical banks of Enigma rotors.
National Archives, College Park, Md

HMS Anderson, the British intercept and codebreaking site outside Colombo, which intercepted Japanese communications during the Second World War and remained in place into the Cold War, working on Soviet traffic.

Public Record Office HW4/3

British three-rotor bombe in the GC&CS outstation at Eastcote, north London.

National Archives, College Park, Md

A Hut 3 report of an Enigma decrypt as sent to Churchill, of the German message reporting that the Allies had landed on D-Day.

Public Record Office HW/2895