On Mon, 11 Nov 2019, Dr Iain Maoileoin wrote:
[ UNIX (tm) (R) ]
I was not just commercial licensees. I remember
seeing a copy of that
letter. We were a Scottish University who had a legit tape sent from
AT&T/Bell Labs for academic use.
I saw the same thing at the University of New South Wales back when
[Uu][Nn][Ii][Xx] <random symbols> was first released.
-- Dave