I remember my dad having one of these pens back in the late 1950's or early 60's. When the pen is up-right, the swimsuit is "on", turn it over and the swimsuit slides off. Googleing anything with "naked" and "woman" together get all wrong results!
I've had this one forever, seems like it came in a box of junk from a garage sale. Any idea what the proper title would be and what it's worth?