yes GPO did indeed build the bombe which I believe was the first computer..ALAN TURING was a gifted mathimitician not an engineer...also one of my late neighbours Capt Joe Baker-Cresswell was the chap who's destroyer captured the first U-boat enigma machine although he did loose two of his sailors when the sub sank....his son was not best pleased with the USA film of there version of capture of U-Boat Enigma!hope this helps regards malcolm PS a close friend of mine from the R/Sigs has a good collection of Enigma items..he's located in the Western Isles
