Simplicity 6440 vintage sewing pattern, dated 1966.
Misses' One-Piece Dress:
The A-line dress has scooped neckline, back zipper and front seam interest. V. 1 has short set-in sleeves, collar and button trim. Sleeveless V. 2 has scalloped collar and ribbon bow. V. 3 with short set-in sleeves and neck ruffle is lined when made of lace, eyelet and sheers.
Bust 32 inches / 81 cm
Waist 25 inches / 64 cm
Hip 34 inches / 86 cm
Pattern is UNPRINTED, checked complete, in good condition with instructions. Envelope has some spotting, and one corner is missing.
More '60s patterns here: