Vogue Americana 2866; ca. 1973; Bill Blass - Misses' Two-Piece Evening Dress. Semi-fitted bias halter top has V-neckline with self or contrast bias ruffle and front-button closing. With or without purchased belt holding in fullness at waistline. Bias, slightly flared skirt in mid-knee or evening length has waistband and side zipper closing. Featured in Vogue Patterns April/May 1973