Butterick 4517 vintage sewing pattern, dated 1989.  

Misses' Dress:

Dress, tea or floor length, has close-fitting, lined, below waist, shaped front bodice with side front and side back seams, flared skirt, back bow with knot, flower and stay, back zipper, attached underskirt with ruffle and below elbow sleeves with armhole binding and stiffening at cap. A: contrast bodice.

Size  12 14 16:

Bust  34 36 38 inches /  87 92 97 cm

Waist 26 1/2 28 30 inches / 67 71 76 cm

Hip    36 38 40 inches / 92 97 102 cm

Pattern is  UNCUT and factory folded. Envelope has wear and tear around opening, and a store stamp on the front.

More 80s patterns here:

https://allthepreciousthings.com.au/collections/1980s