Yes, this was all put up in response to Arnold's forwarding my inquiry. I wasn't on the mail where permission for posting was given, so wasn't sure how widely to publicize the delivery. Now that that's all cleared up: much thanks to Arnold for tracking this down (and Mike Lesk, of course).
I have several friends who worked in AT&T's (and later Lucent's) "post group", which I'm fairly sure was created in response to this idea growing larger than the paper anticipated. That group also created the pq database to run the thing, version 4 of which, written chiefly by Michael Baldwin and packaged by Matthew Diaz, is sitting in "extra" on sources. I've been working through unifying two divergent branches of that in preparation for release, which is what had me asking after the historical context. The exercised turned up some minor bugs in our -ms implementation: 1) The TM cover page wasn't reworked for the fact that the Lucent logo is much larger than the AT&T one, so it stomps on some header text. 2) Font changes on cover sheets (at least under TM) in .DS displays aren't reset on .DE; they are in the body. Pretty sure the body behavior is correct. 3) The logos are Lucent, not ALU. That may or may not be a bug. :-) Also, the paper used PO fonts we don't seem to have. I swapped in CW and things look like I'd expect. If anyone knows what the old PO looked like and can suggest a better substitute, please do. #s 1 and 3 above clearly only matter to people writing things for ALU. I took a crack at fixing #2, but my troff isn't up to it.