Pierre Cardin Vintage 1960's Orange Batwing Chiffon gown maxi dress 3/4 sleeves

Pierre Cardin Vintage 1960's Orange Batwing Chiffon Gown maxi dress 3/4 sleeves Stunning, eye-catching, elegant and simple 2 layers: chiffon over crepe there is another dress listed online with this same material and they list it as silk. I am unsure of material. no tags for size or material Flaws: no belt, a few faint stains, shown in pics. not evident, must really search to find them Please lmk if you have any questions or if you need a belt. I have some great chain belts that would look fAB! measurements: 57" length while on hanger (there is material hemmed, so under layer could be longer if need be) 19" pit to pit, measuring inside out (outer layer of chiffon is batwing, inner layer is regular) 21" Hip (also inside out) 15" empire waist I have jewelry that will look fab with this dress, message me if you want help picking out some jewelry.