Thanks guys for sorting me out again.
No worries. There's a lot of confusion about the period anyway.
The whole period was covered by the Official Secrets Act so the computing history books, when they started coming out, were wrong and credited ENIAC with being the first computer. When Bletchley Park was shut down at the end of the war, everything was destroyed to keep it a secret. Amazingly, around 10,000 people worked there during the war, and not one said anything about it publicly until (I think) The Ultra Secret
was published in 1974. Try keeping a secret like that these days!
However, it is said by the tour guides that not everything
was destroyed: one of the code-breaking machines may have gone 'astray' in the general direction of Cheltenham. And post-war Soviet Russia was using similar encryption methods to the Germans. And then, surprise, surprise, GCHQ appeared in Cheltenham. Not that there is any evidence remaining of any of this, after all, the Official Secrets Act still applies...
So all this history was under a security blanket.
And then the movie industry told their versions of the story where the US Navy captured an Enigma machine (U-571
in 2000) and the only reference to the Polish contribution was a fictitious pro-Nazi Polish spy (Enigma
That misinformation doesn't help either.