Advertising back in the day.
People (have and will) call it sexism in advertising. I call it the flavour of the day. Back then, this was how women were viewed. It would have been folly on the part of the advertising agencies, had they tried selling them business planners, calculators, and chemistry sets.
The tampax ad in particular is sure to have resolved a concern that plagued erstwhile women. Nevertheless, their typesetting is downright terrible if it were a poster. If it was a magazine page, then the font ought to be have been larger, and the copy much more concise.
Anywhoo, it’s a fun glance. Check them out, here!