[_Microft]

Here are some names of package design books that I came across recently:

"The Package Design Book", "Structural Package Design" and "Complex Packaging" via https://mobile.twitter.com/robin7331/status/1484442902050881...

[ggm]

If any of them date from the 1970s, they're good candidates. Didn't recognize the covers but there's often more than one edition of a book. Nice find! they look to be in the same class, possibly even better!