Simplicity 9917 vintage sewing pattern ©1981. 

Jiffy - Misses' Pullover Dress or Top (Adjustable for Miss Petite):

Top-stitched dress V. 1 or top V. 2 has front slash opening, front gathered to yoke at forward shoulder seams, extended shoulders and collar. V. 1 with contrasting collar and facing has elastic waistline casing. 

Size   12:

Bust    34 inches / 87 cm

Waist  26 1/2 inches / 67 cm

Hip     36 inches / 92 cm

Pattern is cut to dress length and checked complete. Envelope has light shelf wear.

More 1980s patterns here:

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