Simplicity 2508 Vintage sewing pattern, dated 1958.
Misses' One-Piece Playsuit, Blouse, Skirt and Sash:
Each garment features applied bands at center front and button front closing. Sleeveless blouse has wide, round neckline. Skirt is full and softly pleated. Sleeveless playsuit has convertible collar. Contrasting sash.
Bust 34 inches / 87 cm
Waist 26 inches / 69 cm
Hip 36 inches / 92 cm
Pattern is UNPRINTED, checked complete, in unused condition. Envelope has age yellowing, light staining, 3 inch tear near flap.
More 1950s patterns here: