When Rejewski had been working on reconstructing the German military Enigma machine in late 1932, he had ultimately solved a crucial element, the wiring of the letters of the alphabet into the entry drum, with the inspired guess that they might be wired in simple "alphabetical" order. Now, at the trilateral meetingRejewski was later to recount"the first question that ... Dillwyn Knox asked was: 'What are the connections in the entry drum? Knox was mortified to learn how simple the answer was.