Simplicity 8028 vintage sewing pattern, dated 1977.

Misses' One-Piece Bathing Suit, Bikini and Cover-up (One piece bathing-suit and bikini sized for stretch knits only):

Top-stitched bathing suit and bikini with elastic casings have bra tied in front and hooked at back neck. Hooded cover-up gathered to front inset has front separating zipper and long set-in sleeves with turn back cuffs.

Size  6 and 8 ( both sizes included in pack):

Bust  30.5 and 31.5 inches / 78 and 80 cm

Waist 23 and 24 inches / 58 and 61 cm

Hip    32.5 and 33.5  inches / 32.5 and 33.5 cm

Pattern is UNCUT and factory folded. Pattern envelope is in very good vintage condition.

More '70s patterns here:

http://allthepreciousthings.com/collections/1970s