Here is a Butterick Pattern # 4988 UNCUT Misses Special Occasion Dress in sizes 12, 14 and 16. Designer Kathryn Conover, New York. It is an out of print pattern circa 1990. This pattern is classified as "Easy" sewing difficulty.
The dress, mid-knee or below mid-knee length, has slightly extended shoulders, shoulder pads, loose-fitting shaped, dropped waist bodice, tapered skirt, back button belt, back zipper, hemline vent, round neckline, two-piece above elbow or long sleeves. Views A & B have pleated front bodice.
Bust from 34 inches to 38 inches
Waist from 26 1/2 inches to 30 inches
Hips from 36 inches to 40 inches
Suggested fabrics are faille, wool crepe, lightweight gabardine and silk-like linen.
The pattern and instructions are still factory folded. The envelope shows some wear and creases from age and storage.