Simplicity 2962 vintage sewing pattern, dated 1959.

Misses' Dress, Jacket and Cummerbund:

Sleeveless dress has square neckline and a softly pleated skirt. Short jacket has round neckline, kimono sleeves, button front closing and is lined to edge. Dress may have contrasting pleated cummerbund or narrow self belt. Dress and jacket have binding trim in cummerbund fabric. 

Size    12:

Bust    32 inches / 81 cm

Waist  25 inches / 64 cm

Hip     34 inches / 87 cm

Pattern is printed, cut and checked complete. Envelope has paper tanning, light wear around edges, tears around opening.

More '50s patterns here:

https://allthepreciousthings.com/collections/1950s