Siemens and Halske T52
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The Siemens & Halske T52, also known as the Geheimschreiber, or Schlüsselfernschreibmaschine, was a World War II German cipher machine and teleprinter produced by the electrical engineering firm Sieme
"Sturgeon" exhibit at the US National Cryptologic Museum
A T52d on display at the Imperial War Museum, London.
Arne Beurling
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Arne Carl-August Beurling was a Swedish mathematician and professor of mathematics at Uppsala University and later at the Institute for Advanced Study in Princeton, New Jersey. Beurling worked extensi
Arne Beurling in 1940s
Statue of Arne Beurling in Uppsala.
Arne Beurling´s family grave at Norra begravningsplatsen in Solna.