True Vintage Dress. Mod Style Volup/Curvy Sizing

Cute mod retro sheeth dress. No label. Material feels like polyester with a bit of stretch. Not sure when it's from but could be 1970s. Short sleeve. Nylon zipper in back. High neckline. Hook and eye closure I added to the coller so it could close in back. No lining. Red squares are raised above the gray material. Bust line has darting. A raised bit of fabric runs the length of the dress to create a neat detail. Good condition for its age. No holes or tears. Length- 39 inches Bust-- 21 inches Waist- 19inches, approx.