Simplicity 9450 vintage sewing pattern ©1980. 

Misses' Dress:

Dress with gored skirt stitched to bodice at elasticized waistline has narrow shawl collar, back zipper, set-in camisole and optional tie belt. V. 1 has camisole with lace overlay. V. 1 & 2 have long sleeves gathered to buttoned cuffs. V. 3 has split cap sleeves. 

Size  12:

Bust  34 inches / 87 cm

Waist 26 1/2 inches / 67 cm

Hip    36 inches / 92 cm

Pattern is cut and checked complete. Envelope has some shelf wear,handwritten name on the front.

More 1980s patterns here:

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