Simplicity 6939 vintage sewing pattern ©1985. 

Misses' Front-Wrap Dress ... Adjustable for Miss Petite:

Dress with bodice gathered to band at dropped waistline has extended shoulders. V. 1 with three-quarter length sleeves and top-stitched V. 2 have notched collar. V. 3 has long sleeves gathered to buttoned cuffs. 

Size  12:

Bust  34 inches / 87 cm

Waist 26 1/2 inches / 67 cm

Hip    36 inches / 92 cm

Pattern is partly cut and checked complete. Envelope has some shelf wear, light spotting.

More 1980s patterns here:

http://allthepreciousthings.com/collections/1980s