Bettie Page, the 1950s secretary-turned-model whose controversial photographs in skimpy attire or none at all helped set the stage for the 1960s sexual revolution. (CMG Worldwide / Associated Press) Bettie Page sunbathes during a photo shoot in 1950. (Arthur Fellig / International Center of Photography via Getty Images) Pin-up Betty Mae Page is seen in the 1954 film “Varietease.” Page both titil