Captain Raymond “Jerry” Roberts, one of the last surviving Second World War codebreakers at Bletchley Park, has died at the age of 93 following a short illness. 
 
 He was part of an elite team at the British listening post which helped crack the German Tunny system used by Hitler, Mussolini and other high ranking generals during the war. 
 
 Capt Roberts joined the team of codebreakers in Buckinghamshire as a cryptographer and linguist in 1941, said a Bletchley Park spokeswoman. 
 
 He was one of four founder members of the Testery, an elite unit named after the man leading it, Ralph Tester, which cracked the Tunny code making it possible to read Hitler's messages during the war. 
 
 The team managed to reverse engineer the Tunny, which had 12 encryption wheels to the Enigma machine's three, described by Bletchley Park as "an incredible feat of dedication". 
 
 The spokeswoman said: "Jerry came to Bletchley Park straight from university but they were all in unchartered territory. It was new ground for everybody." 
 
 The intelligence gathered at Bletchley Park is credited with providing strategic information that was passing between top-level enemy commanders. It is believed to have shortened the war by two years and helped save millions of lives. 
 
 The spokeswoman said: "In the last six years of his life he campaigned absolutely tirelessly for awareness and the achievements made at Bletchley Park. 
 
 "During the war, people in one room did not know what people were doing in the next room, never mind another department. It's still a jigsaw puzzle even now." 
 
 Describing Capt Roberts as "lovely" and "absolutely charming", she said: "He was passionate about what he and his colleagues achieved. 
 
 "He did not want to blow his own trumpet but to have the work of his colleagues recognised." 
 
 Reminiscing years after the war, when he was finally free to talk about his work, Capt Roberts said he had taken delight in reading Hitler's messages, sometimes even before the German leader. 
 
 In a BBC interview last year, he described the intelligence the team had gathered as "gold dust" because it was “top level stuff” that referred to the movement of entire armies. 
 
 The stream of intelligence from his unit at Bletchley Park proved vital in the Allied D-Day invasion and helped save many lives. "We were breaking 90 per cent of the German traffic through '41 to '45",” Capt Roberts said. 
 
 "We worked for three years on Tunny material and were breaking - at a conservative estimate - just under 64,000 top-line messages." 
 
 He added it had been "an exciting time" whenever the team "started getting a break on a message and seeing it through". 
 
 Capt Roberts later received an MBE in recognition of his service and he became a tireless ambassador for the memory of those who had served this country in secret during the war. 
 
 He spent years campaigning for greater acknowledgement of his colleagues, including Alan Turing, who broke the naval Enigma code. 
 
 Capt Robert also called for the entire Testery group to be honoured, including Bill Tutte, who broke the Tunny system, and Tommy Flowers, who designed and built the Colossus, which sped up some stages of the breaking of Tunny traffic. 
 
 Capt Roberts said the work done at Bletchley Park had been "unique" and was unlikely to happen again. 
 
 He said: "It was a war where we knew comprehensively what the other side were doing, and that was thanks to Alan Turing, who basically saved the country by breaking Enigma in 1941." 
 
 Capt Roberts, of Liphook, Hampshire, worked at Bletchley Park until the end of the war before spending two years at the War Crimes Investigation Unit, and then moving on to a 50-year career in marketing and research. ||||| Media caption Raymond "Jerry" Roberts spoke to the BBC in 2010 about cracking the Tunny code 
 
 Raymond "Jerry" Roberts - one of the last of a top World War Two codebreaking team at Bletchley Park - has died, aged 93, following a short illness. 
 
 Capt Roberts, from Liphook, Hampshire, was part of a group that cracked the German High Command's Tunny code at the British codebreaking centre. 
 
 Their decrypts made it possible to read Hitler's own messages during the war. 
 
 The team is credited with helping to shorten the war by at least two years. 
 
 Hitler's top generals 
 
 Capt Roberts joined Bletchley Park, in Buckinghamshire, as a German linguist and was among four founder members of the Testery section - named after its head Ralph Tester. 
 
 Their target was to crack a system known as Tunny, which carried the messages of Hitler's top generals and even the Fuhrer himself. 
 
 The system used four times as many encryption wheels as the famous Enigma machine - which carried military communications. 
 
 Image copyright Getty Images Image caption Bletchley Park, where the Tunny code was deciphered 
 
 Reminiscing years after WW2 - when he could finally talk about his work - Capt Roberts said he had taken delight in reading Hitler's messages, sometimes even before the intended recipient. 
 
 He described the intelligence the team had gathered as "gold dust" in a 2013 BBC interview. 
 
 Image copyright AP Image caption The intelligence gathered at Bletchley Park proved key to the D-Day landings 
 
 It was "top-level stuff" referring to the movement of entire armies, he said. 
 
 This stream of intelligence proved vital in the Allied D-Day invasion and helped save many lives. 
 
 'Exciting time' 
 
 "We were breaking 90% of the German traffic through '41 to '45", Capt Roberts recalled in one interview. 
 
 "We worked for three years on Tunny material and were breaking - at a conservative estimate - just under 64,000 top-line messages." 
 
 He added it had been "an exciting time" whenever the team "started getting a break on a message and seeing it through". 
 
 Image copyright Science Photo Library Image caption Capt Roberts campaigned for further recognition of his colleagues – including Enigma codebreaker Alan Turing (above) 
 
 Capt Roberts later received an MBE and became a tireless ambassador for the memory of those who had served in secret. 
 
 He spent years campaigning for greater acknowledgement of his colleagues, including Alan Turing, who broke the naval Enigma code. 
 
 'Unique time' 
 
 And he argued the Testery group as a whole should he honoured for its work - including Bill Tutte, who broke the Tunny system, and Tommy Flowers, who designed and built the Colossus - which sped up some stages of the breaking of Tunny traffic. 
 
 Capt Roberts said the work done at Bletchley Park had been "unique" and was unlikely to happen again. 
 
 He said: "It was a war where we knew comprehensively what the other side were doing, and that was thanks to Alan Turing, who basically saved the country by breaking Enigma in 1941." 
 
 Capt Roberts worked at Bletchley Park, Buckinghamshire, until the end of the war before spending two years at the War Crimes Investigation Unit, and then moving on to a 50-year career in marketing and research.
– Britain has lost one of its last World War II code breakers, credited with shortening the war by at least two years and saving millions of lives. Raymond "Jerry" Roberts—who died at 93 after a short illness—served as a German linguist and cryptographer at Britain's premier decryption establishment, Bletchley Park, in 1941 when he and three others were tasked with cracking Germany's "Tunny" code system. What the team eventually uncovered Roberts dubbed "gold dust": messages describing the movement of entire armies, including some signed by Adolf Hitler himself, the BBC reports. "We were breaking 90% of the German traffic through '41 to '45," Roberts once said. "We worked for three years on Tunny material and were breaking—at a conservative estimate —just under 64,000 top-line messages." After the war, Roberts spent two years at the War Crimes Investigation Unit, then 50 years in marketing and research. In his later years, he became a tireless advocate for those who had served the war effort in secret and for his code-breaking colleagues. He was "lovely" and "absolutely charming," a Bletchley Park rep told the Telegraph. "He did not want to blow his own trumpet but to have the work of his colleagues recognized."