Simplicity 2690 vintage sewing pattern, dated 1958.

Half Size Slenderette

Semi-fitted chemise dress has a notch trimmed shawl collar; kimono type sleeves; patch pockets; and back kick pleat.  Lower edge of the bodice back is softly pleated.  Dress is trimmed with self fabric bias and bows.  V. 1 features top-stitching trim. 

Size   18 1/2:

Bust   39 inches / 99 cm

Waist 33 inches / 84 cm

Hip    43 inches / 109 cm

Pattern is UNPRINTED tissue, still factory folded and unused. Envelope has some small holes.

More '50s patterns here:

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