Simplicity 8442 vintage sewing pattern, dated 1970. 

Misses' Dress or Jumper ... Designer Fashion:  (Including "Designer Touch" Leaflet ... "Top-stitching").

The collarless, body lined dress or jumper with skirt stitched to bodice above normal waistline has front inset, back zipper, low "V" shaped neckline and shaped patch pockets. The sleeveless dress or jumper V. 1 features top-stitching. Button trimmed Dress V. 2 has below elbow length set-in sleeves. 

Size  12:

Bust  34 inches / 87 cm

Waist 26 1/2 inches / 67 cm

Hip    36 inches / 92 cm

Pattern is UNCUT and factory folded, with instructions. PLEASE NOTE THERE IS NO ENVELOPE INCLUDED WITH THIS PATTERN. I will include a scanned, printed copy of the envelope front and back, so that all the details for yardage, etc are included.

More '70s patterns here:

http://allthepreciousthings.com/collections/1970s