1970s, and this is the cover of Cosmopolitan magazine, the publication that, for decades, has been a standard of commercialized sexual liberation for the modern woman. For years, these covers have been a source of fascination. Current Cosmopolitan covers, invariably featuring pop stars and infinite variations on “wild” sex tips. But the covers of the 1970s — published relatively early on in the 32-year tenure of legendary Cosmo editor Helen Gurley Brown — have a particular mystique.
