Description - 60s one piece swimsuit with an attached skirt. It has semi structured cups but they are flexible not super stiff

Details

Brand - Sears

Size - approximately a modern XS-Small. I tried looking up how to determine cup size and I think it's possibly a B-C cup but please compare measurements in a swimsuit that fits you well. 

Chest -  approximately 17" pit to pit, stretches to 18.5"

Under bust - approximately 14.5" 

Cups - 5.5" across, 5" top to bottom

Waist -approximately 11" across, stretches to 14"

Hips - approximately 16.5" across, stretches to 21"

Leg Opening - 9" across, stretches to 13"

Shoulder to Crotch - 27.25", stretches to 31.5"

Condition - I found one tiny nick in the lining but don't see any other issues