A former job had a similarly old codebase. I made the mistake of asking where the docs were and someone pulled out this typewritten booklet of yellowed pages fr

A former job had a similarly old codebase. I made the mistake of asking where the docs were and someone pulled out this typewritten booklet of yellowed pages from 1981 that was the only remaining copy of the originals in the early 70s. The code was on at least its 4th language by that point and is probably still running robots today.