response 4 of 4:

Nov 20 07:27 UTC 2017

resp:3 - If I can find a version of it. From looking online, there's a
bunch of DECUS tapes that have EMACS -- but I think those are post-TECO EMACS.
There might be an ITS system out there that has an EMACS tape though. I'll
update this topic if I do find one.