Re: When were the HW 5 files and the Y intercepts first made available to the Public ?
It seems to me that some searchers were allowed to see Ultra files before that. In the 1980s I read a book (that is still in my parents house) with a part about Ultra and the Coventry raid.
I know that at least in France "recognized" searchers can be allowed to see archive documents with no public access allowed.
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