If you are thinking this woman looks like the quintessential pin-up model, you're right. That's exactly what she is. This is Betty Brosmer, a 1950's pin-up girl and commercial model. She was the winner of Miss Television, as well as many other beauty contests in the 1950s. Her title as Miss Television got her on TV alongside Steve Allen, Jackie Gleason, and Milton Berle just to name a few. The press generally considered her to have the most gorgeous body in the 50s, due to her incredible waistline and body stats of 38-18-36.
After her career as a model, she got into physical fitness. She has written several books on the topics of physical exercise and fitness, and she has been a vocal spokesperson for health and bodybuilding. This shift in her career came after marrying Joe Weider in 1961.