Simplicity 9193 vintage sewing pattern, dated 1979. 

Misses' Dress in Two Lengths and Tie Belt:

Cowl neck dress with skirt stitched to bodice below normal waistline has back zipper, elastic waistline casing, long set-in sleeves with elastic casings and is worn with tie belt. V. 1 regular length. V. 2 long length. 

TWO copies are available; choose size from drop down.

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. Envelope is in good vintage condition, with light paper tanning.

OR:

Size   14:

Bust   36 inches / 92 cm

Waist 28 inches / 71 cm

Hip    38 inches / 97 cm

Pattern is UNCUT and factory folded. Envelope has light paper tanning and shelf wear.

More '70s patterns here:

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