This page lists several ATT publications and has a link to a 1953 publication that could fit your description (and could have been a subsequent editini).
Otherwise, maybe you'd recognize the name as one of the other publications?
Nice! I browsed through the 1953 edition quickly, and it's very similar. So probably some updated version of that.
I was just blown away they send you all that material for free by simply applying. This would have been before the internet was big, so probably isn't as exciting now.
As a very young boy in the 1950s or 60s, I bought a new flavor of Life Savers candy and enjoyed this new flavor so much I wrote the company complimenting them on the great flavor. Some time later, they sent me a box containing all their flavors of Life Savers.
Not the same thing but a comment on what things were like back in the day.
For comparison, last year I was eating a packaged slice of ham and bit something hard, a rock or bone or something. Didn't hurt me or anything, but still odd. It was small and white, but could have been anything. I threw it out.
Later that day I wrote the company just to let them know, thinking if others had similar issues they could investigate.
They wrote me back saying it's impossible their packs would have bones in them, and it's possible my own tooth broke/chipped and that's what I was biting, and attached a coupon for something like 35 cents off one pack.
I found the reply to be really bizarre - I'd probably rather they not responded at all.
Funnily enough, I have indeed have had part of a tooth (an impacted wisdom tooth) come off when eationg something, and was kind of grossed out that my food could contain this small white hard stone-like thing... until later that day I realized I was missing a part of a tooth.
Actually, it's happened twice, as about 15 years after that I had a bad cavity and fracture in a forward molar, and a few days before a scheduled root canal it happened again, but this time I suspected what had happened as soon as I encountered something hard all of a sudden while chewing something that shouldn't really have bits as hard as that in it.
Which is to say, their response that perhaps it was your own tooth may not have been as out of left field as you might have thought. It's probably a somewhat common occurrence.
Which is why I mentioned the AA mirror. There's another copy of the 1961 edition on IA (without the _a3j0 suffix) that can has borrowing enabled, so all pages should be accessible. Both are mirrored on AA.
> I was just blown away they send you all that material for free by simply applying.
It was a hangover from their days a quasi-socialist, monopolistic enterprise ("We're the Phone Company"), when they could afford to be "inefficient" in that way -- scare quotes because it's difficult to calculate the cost of preparation and dissemination against all the high-value careers the material may have inspired. These days, an accountant would glance at the cost and cut it out without thinking twice.
These days the cost would be funded by money printing, and there is no need to train because that is the job of university even when they don't actually train people.
Otherwise, maybe you'd recognize the name as one of the other publications?
https://www.long-lines.net/sources/ATT_tech_books.html