Simplicity 5451 vintage sewing pattern ©1972.

Misses' Jiffy Knit Dress in Two Lengths (Sized for Stretch Knits Only):

The long or short dress with back zipper and sweetheart neckline has self-fabric tie slipped thru opening in center front seam. Short dress is mini length. Long dress is ankle length. 

Size   16:

Bust   38 inches / 97 cm

Waist 30 inches / 76 cm

Hips   40 inches / 102 cm  

Pattern is uncut and factory folded. Envelope is in good vintage condition, with a water stain on the front.

More '70s patterns here:

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