Though I also read the book, I don't remember the details of DEHOMAG control via Switzerland, but I would be surprised if there wasn't a paper trail of directiv

Though I also read the book, I don't remember the details of DEHOMAG control via Switzerland, but I would be surprised if there wasn't a paper trail of directives from Armonk, NY via the Swiss to maximize DEHOMAG's market. I do remember that Coca-Cola in Germany was not able to use the formula for the eponymous soft drink, and developed Fanta during this time. I do not imagine that much secrecy in tabulating machines was present. https://en.wikipedia.org/wiki/Dehomag https://en.wikipedia.org/wiki/Dehomag Looking over the DEHOMAG wiki, there are some curious facts... "Watson had received Order of the German Eagle medal at the Berlin ICC meeting in 1937, but after Nazis' pogroms against Jews started in 1938 Watson himself wanted to distance himself and IBM from Germans but was convinced not to do so by Secretary of State Hull and he gave up the idea until spring of 1940. "Leon Krzemieniecki, the last surviving person involved in the administration of the rail transportation to Auschwitz and Treblinka, stated he knew the punched card machines were not German machines, because the labels were in English. Income from the machines leased in General Government was sent through Geneva to IBM in New York."