Kwik Sew 1336 Vintage Sewing Pattern, dated 1984. 

Misses' two piece swimsuit can be made with regular or high cut leg openings. All outside edges are finished with elastic. View A has self fabric bow which can be tied around neck. View B is a tank style. 

Size    6 8 10 12:

Bust   32 1/2 - 37 inches (83 - 94 cm)

Waist 23 1/2 - 27 inches (59 - 68 cm)

Hip     34 38 1/2 inches (86 - 98 cm)

Pattern is uncut and factory folded. Envelope is in good vintage condition, still sealed, with a store stamp on the front.