Ads from the Bronze Age of Porn

Before it was on the internet, porn was sold via small ads in men's general interest magazines like True and Argosy, which is where these came from. There was all manner of delivery systems for your porn viewing pleasure. There were little comic books:
Stag films, which required the use of a film projector so the purchase of same automatically tagged you as a pervert back in those days, the mid 50's through the late '70's:
And there were also "art study aids:"And now we have the internet and one can "rough up his suspect in the privacy of his own home, or the local library if one is adventurous. Thank goodness for progress!