This is a vintage sewing pattern from Vogue's American Designer line. It was created by John Anthony in 1979.
The pattern makes a two piece evening ensemble.
Misses' Evening Top and Skirt - Very loose-fitting top with front, back and sleeves cut-in-one has shaped front hemline extending below waist, waistband and narrow hem or zigzag finish. Full-length dolman sleeves are worn pushed up. Purchased belt. Evening length, front wrapped slightly gathered skirt has shaped hemline, waistband and narrow hem or zigzag finish.
Size 10: Bust 32 1/2 --- Waist 25 --- Hip 34 1/2.
It is unused and still in factory folds and includes instructions.