Butterick 4634 sewing pattern, dated 1987.
Misses'/Misses' Petite Dress:
Dress, floor length, has lined, boned, shaped front bodice with side front and side back seams, flared skirt with side front seams ( no side seams) and back zipper. A : contrast tie end at shoulder. A, B : overskirt with side front and side back seams ( no side seams) draped at lower edge, and contrast underskirt. B, C : ruffles. C : short sleeves with elastic cap and lower edge and tie ends.
Sizes 6 8 10:
Bust 30 1/2 - 31 1/2 - 32 1/2 inches / 78 80 83 cm
Waist 23 24 25 inches / 58 61 64 cm
Hip 32 1/2 33 1/2 34 1/2 inches / 83 85 88 cm
Pattern is partly cut to size 8 and checked complete. Envelope has large tears around opening, writing on the front.
More 1980s patterns here:
http://allthepreciousthings.com/collections/1980s
