This is a classic 1950's one piece white swimsuit from Caltex of California. It is lined in the bust and is lined from the waist down. It has a zipper closure in the back and MOP buttons at the strap. The leg opening is lower, meant to look like a skirt or shorts, and it has elastic leg openings.
We estimate this bathing suit to fit like a US size 6, or small/medium.
LENGTH from top of strap to crotch: 30"
LENGTH from underarm to hem: 17"