Gaby Suntan Lotion was a popular sunscreen manufactured during the 1940s by Gaby, Inc. of Philadelphia, Pennsylvania, and above is a stand-up cardboard counter display touting its famed greaseless composition. Other versions of the ad informed consumers that the lotion was also alcohol free. Of course, what drew us to this is the pin-up style art painted by an unknown, not its SPF qualities. But it does it inspire us work on our tans a bit. After all, summer’s almost over.

International nudist magazines promoted group nakedness as fun, healthy, and innocent—and even an unavoidable next step in human social evolution. If someone raised their eyebrows at your Campus Jaybird, it just proved they weren’t ready to be free, man. At least you knew better than to invite them on your next nude biking trip. Nudist magazines proliferated throughout the 50s and 60s, and remained popular into the 1970s. The Nudist Idea and American Nudist Leader, both below, feature covers with Diane Webber, aka Marguerite Empey, a former Playboy centerfold who remains one of the most renowned nude models of all time. Also putting in an appearance is Virginia Gordon, another Playboy model, seen on the cover of Paradise. Though the international nudist movement still exists, it is possibly less accepted than fifty years ago. We’re too young here to know for sure, so you’ll just have to ask your grandma about that. What we do know is you’ll be seeing more of these covers from us.