Yes, you read it right. This swimsuit by Jacques Heim is from 1950. Most of you felt this suit was from the 1960s, and it would have fooled me too if I didn't have the original magazine that these suits were featured in. Wearing History and annasoc both guessed early 50s, and Sacheverelle guessed 1940s over on Facebook. Congrats to you three for being the closest! This just goes to show how far ahead of his time Jacques Heim was.
Here are more suits from the same year. Enjoy!