1960s Vintage Sleeveless Shift Dress With Polka Dots and Tiered Ruffles

60s vintage summer sleeveless shift dress in flowy rayon silk. Two-tone polka dot pattern with black dots in front and dark coffee-brown dots in back; ruffle detail around the collars has brown dots. Fully lined, zips up the back with metal zipper. Label (frayed): Miami Originals Miami, Fla rn 20251 Great vintage condition;only minor flaw (tiny hole right rear only visible on close inspection), laundered and ready to wear. No size tag. Dress is too big on size 7/8 mannequin, check measurements: shoulder to hem: 39 inches armpit to armpit: 19 inches (approx. 38-inch chest) waist: 41 inches shoulder to shoulder across the back: 17 inches