Simplicity 5911 Vintage Sewing Pattern, dated 1965.

Misses' One-Piece Dress:

Dress with gathered skirt has scooped neckline and back zipper closing. V. 1 has short set-in sleeves with gathered ruffles and embroidered eyelet insertion trim. Sleeveless V. 2 has gathered skirt ruffle and self fabric or purchased belt. 

Size   14:

Bust   34 inches / 87 cm

Waist 26 inches / 66 cm

Hip    36 inches / 92 cm

Pattern is UNPRINTED and checked complete. One tissue piece has a small side tear, which will not affect use. Envelope is in very good vintage condition, with a store stamp on the front.

More '60s patterns here:

http://allthepreciousthings.com/collections/1960s