On Sun, Mar 22, 2020 at 2:20 PM Warren Toomey <wkt@tuhs.org> wrote:

On Sun, Mar 22, 2020 at 09:58:29AM -0600, Warner Losh wrote:
> "from a working C compiler for 2nd Edition UNIX."

> Does anybody know for sure, or can provide more insight into the last1120c.tar.g
> z file to help disambiguate?

Yes, all the details are on Dennis' web page:

https://www.bell-labs.com/usr/dmr/www/primevalC.html

Magic historical 8-ball sez: situation unclear, try again.

So could be 2nd, 3rd or 4th edition given the date range.

Warner