This is not an artifact of me fooling around with Photoshop. Nor can I imagine some Google drone did this during the newspaper-scanning process. You're welcome to look at the original here.
My guess is some bored artist or letterer in 1947 seeing what he could sneak past the editor.
Perhaps you recall the "Follies" post from a few days back, about a certain kind of sweat associated with hormonal changes? I think this UK ad campaign is trying to cover similar territory.
The explanation: "Made by Canadian filmmaker Guy Maddin as an assignment from Sundance Channel to complete a short video shot entirely with a cell phone camera. No further description necessary."
Note that a male and female bare bum are exposed, under fairly innocent circumstances. And director Guy Maddin makes art, not mere porn!
Category: Obscenity, Comics, Teenagers, 1940's, Butt