Jason Stevens <jsteve@superglobalmegacorp.com> writes:
 I dont know if it's worth even trying to find and mirror pre 1993 ( IE
 when cheap CD-ROM mastering was possible) GNU software?

 Things like binutils, gas, and GCC can be tremendously useful, along
 with binaries for long "dead" platforms?

I have collected old version of GNU Emacs.  19.x is well covered.  18.x
less so.  Noah Friedman had 16.56, and I found two releases of Emacs 17
and one I believe to be version 13!

Other historical Unix Emacsen: MicroEMACS 30 from Dave Conroy, Gosling
Emacs, Warren Montgomery/BTL/ATT/unixpc Emacs, EMACS-11 by Fred Fish.

Get these from https://github.com/larsbrinkhoff/emacs-history