Hearsay Vintage Ladies Long black cotton dress

ovely floor length black cotton sleeveless A-line dress with small shoulder straps, by Bonwit Teller/designer HearSay. The bodice of the dress has yellow, green, and red stripe, with a small bow on the yellow stripe, and a small V at the bodice top snd under the yellow bow. Bodice of the dress also is in a pendulum style, with a back nylon zipper. Skirt bottom of dress also has the yellow, green, and red stripe. Dress I believe is from the 70's era