Simplicity 5142 vintage sewing pattern, dated 1963.
Misses' One-Piece Dress in Proportioned Sizes:
Dress has high round neckline, kimono sleeves, center back zipper closing. Bodice is dart fitted, waistline back is gathered. Slim skirt has a front panel, pockets concealed in side front seams. V. 1 has below elbow length sleeves. V. 2 has short sleeves. A self fabric or purchased belt may be worn with both V.'s.
Bust 32 inches / 81 cm
Waist 25 inches / 64 cm
Hip 34 inches / 86 cm
Pattern is UNPRINTED, unused and factory folded. Envelope is in very good vintage condition, with a store stamp on the front.
More '60s patterns here: