"Meet Hilda, the creation of illustrator Duane Bryers and pin-up art’s best kept secret. Voluptuous in all the right places, a little clumsy but not at all shy about her figure, Hilda was one of the only atypical plus-sized pin-up queens to grace the pages of American calendars from the 1950s up until the early 1980s, and achieved moderate notoriety in the 1960s."
You can follow these links to Hilda
here (info and pictures)
discovered via facebook friends who are more in the know than I.