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The Ballroom
During early WW2 the Ballroom was used as a teleprinter room, like the Billiard Room next door.
By 1942, the teleprinters had been relocated to the huts and specially constructed buildings. It was suggested that the Ballroom be partitioned to become a Typex machine room repair workshop.
However, it was decided to use the Ballroom for more appropriate activities, and in 1942 the Recreation Club moved in. The Reels (Scottish Dancing) Section was based here in 1943. The space was later converted into a quiet reading and rest room where staff could relax.
The Ballroon is the largest room in the Mansion. The walls are covered in ‘linen-fold’ oak panelling and the ceiling is oak beam and plaster. The room was added as an extension to the existing house by its last resident, Sir Herbert Leon, in the 1880s.
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18th September 1938
As Hitler demands territory in Czechoslovakia, war seems inevitable. GC&CS sends most of its staff from London to Bletchley Park and prepares for the oncoming conflict. For three weeks, around 70 staff work from the mansion. When locals ask questions, staff say they are here for the pheasant shooting season. Work starts immediately but the conditions are crammed and chaotic, with mounds of books and papers scattered around. There are too many people crammed in for the codebreakers to concentrate. Even so, there are not enough of them to do everything.
War is avoided when Hitler is allowed to seize Czechoslovakian territory. It would not be, as Neville Chamberlain claims, “ peace for our time” but it is a breathing space. CG&CS uses it to learn the lessons of this first move.
The codebreakers return to London, When they come back to Bletchley Park, they willl be better prepared.
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Free Press Action Fund staffer Katherine asks Gov. Christie about encryption at a meet-and-greet in Jefferson, IA
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WASHINGTON, DC: U.S. Department of Justice, Oct. 4, 2019
Lawless Spaces: Warrant-Proof Encryption and its Impact on Child Exploitation Cases
Sarah Baker/NCMEC
Index cards
Revealing secret weapons
Among the intelligence discovered from messages and stored on cards was information about the construction and launch of Germany’s secret weapons - the V1 flying bomb and V2 rocket - used against Britain towards the end of the war.
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Hagelin C36
A later version go the Hagelin, the C38s, was used by the Italian navy to encipher messages about the movement of it’s ships and the German and italian convoys. BP’s Italian Section worked on these messages using a machine called Nightingale which calculated the C38s’s settings.
The point of all this, a German Lorenz SZ42 teletype encryption peripheral, aka codename TUNNY/FISH.
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Bottom board filter cap values
Reverse-engineering & background: www.eevblog.com/forum/projects/avionics-teardown-reverse-...
1947 Sunbeam Talbot
2 litre Sports Saloon converted to a Tourer
Shipped to Simpsons of Madras when new on 12th September 1947, this car was oringally light green, which is still visible in some places. Following its return to the UK the car was generously donated to Bletchley Park Trust by Mick Jagger after starring in the film Enigma (2001) which was produced by Jagger’s film company.
Loosely based on real events, the film follows the story of cryptanalysts at Bletchley Park facing their worst nightmare: Nazi U-boats have unexpectedly changed their Enigma cipher and a merchant shipping convoy with 10,000 people on board is in peril.
Jagger required a period sports car for the starring role, which had a large enough boot into which a secret compartment could be built to house the Enigma machine. A Sunbeam Talbot 2 Litre Tourer would have been ideal, but they were rare in 2001, therefore this Saloon was acquired. The while of the body from the scuttle backwards had been removed and replaced by a custom 4 seater Tourer body and windscreen with the required compartment behind the rear seats. Notice the blackout headlights.
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This is one of the largest rooms in the Mansion. Temporarily adopted as an office by the Military Section in 1939, the Dining Room was mostly used during the war as a place for eating and recreation.
In the late 1930s, there were a few hundred staff at Bletchley Park, and meals were served to them by waitresses. In 1938, a top London chef from the Savoy was even temporarily brought in by management to cook for those early codebreakers.
In 1942, the operation at Bletchley Park had grown much bigger and different catering arrangements were established. The large new canteen opened on Wilton Avenue, and this space, whilst still used as a dining room, was sometimes handed over to the Recreation Club for lectures.
The Leon family, who owned Bletchley Park pre-war, were responsible for the design and construction of this splendid room. Much of it’s Edwardian grandeur remains, despite the thousands of people who have worked - and eaten - in here since
Enigma working aid
Codebreakers made working aids from whatever materials were available. Few survive and knowledge about they were used has largely been lost. this example is thought to have helped in the breaking of 3-rotor Enigma machine ciphers,
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...Or did they return to do this at a later date just to test fate...?
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