$ 0 0 The mid to late 1940s was a breakthrough period for women’s swimwear, and at its peak was the birth of the pacesetting Bikini in 1946. And it really boomed in the 1950s. A postcard set of 69 women in swimsuits from the 1940s and 1950s will bring to you a clearer view. See more swimwear via vintage everyday: Vintage Swimwear Revisited – 69 Glamorous Postcards Show Women Swimsuits in the 1940s and ’50s