Vintage 70''s David Warren plum dress

Wonderful vintage dress from the 70’s (maybe early 60''s ) tag states Sz 8, more of a modern 4, listing as Sz S. Cut is super flattering, flows beautifully & is super soft & silky, has a satin like feel but better :-) zipper in back, hook & eye closure on back of collar, ribbon ties in front. Soft muted purple plum color- almost a very neutral color. One of my vintage favs! waist just over 13" across, armpit to armpit 17.75" across, length appx 43.5". Entire piece is stretchy except waistband.