Check out this great retro swim suit pattern from the 1970's. It is Stretch & Sew 1325 from 1974. It's called a Sun and Swim Suit and it was designed by Ann Person.
Stretch and Sew patterns were quite popular back in the 1970's for sewing with stretch knit fabrics. Instead of selling you tissue paper sewing patterns, they had large size templates printed on paper that you then could trace out the size you need and make your own pattern pieces.
This is for sizes 8, 10, 12, 14, 16 and 18 and bust sizes 32, 34, 36, 38, 40 and 42.
The paper envelope has wear and some discoloration. There is a store stamp on the front and some writing in ink on the back. Overall good condition. The paper instruction sheet and the paper pattern template have minor wear and are in overall very good condition. This pattern also includes pattern pieces that someone previously had made, unknown for what size.