Vintage 70's Jessica McClintock Floor Length Dress 6 Fits like 4

Vintage 70's Jessica McClintock Floor Length Dress 6 but Fits 4 Near perfect Jessica McClintock Dress in ivory white with lace and beading, as pictured. Marked size 6, Model is XS / 2 and it fits a bit big on her. Maybe current 2/4, check measurements. no flaws noted, no stains, no issues. RN# dates the dress from the early 1970's About 34" bust, 28" waist, between 49 and 50" tall top to bottom overall. The only issue might be that the front beading may be missing a curly section on the left above the beaded oval.