I bought this circa 1980 in the Gunne Sax Factory Outlet store in San Francisco’s Garment District. Back then, factory outlets were bare bones sales floors where clothing manufacturers sold samples, overruns, and imperfect pieces. Tags were cut out by the store. I believe this is a size 11, but I show measurements so please look. Fabric is semi-sheer Poly/cotton voile. I took photos of the few repairs needed, including the fact that the bottom button is missing. Please feel free to ask questions or make offers😊