Time is precious! Agree re: 602 Chamberlin may also interest you. Not a small PDF. If you don’t have it already and are interested I may know where there’s some NOS hardcover editions sites.music.columbia.edu/cmc/courses/... Also, unrelated: is your username a nod to the LISP machine/keyboard?

Re Symbolics, yes, also the first domain name registered, I believe? I never used a lispm but I lurk with a bunch of collectors and a hardcore Common Lisper was my functional programming mentor a while back. He pointed towards SICP, Scheme, Standard ML, and thus was created a monster.

Yeah, I know Chamberlin, absolutely love that book. Great writer.