Simplicity 6030 vintage sewing pattern ©1973.

Dress is Two Lengths in Half Sizes . . . Look Slimmer®:

The dress with skirt stitched to bodice above normal waistline has back zipper and "V" shaped neckline. Regular length dress V. 1 has short set-in sleeves and novelty braid trim. V. 2 has long set-in sleeves. Sleeveless V. 3 has metallic braid trim. Long dress V. 2 & 3 are ankle length. 

Size   12 1/2:

Bust   35 inches / 89 cm

Waist 29 inches / 74 cm

Hip    37 inches / 94 cm

Pattern is cut and checked complete, sleeve is cut on short length with extensions included for long length. Envelope has paper tanning and spotting, and some tears around opening.

More '70s patterns here:

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