Vintage 70’s Floor Length Floral Gown

Custom hand made so no tags. Polyester type fabric. Vintage circa 1970’s with a pretty floral pattern. Pit to pit is about 13”, neck opening is approximately 8”. Overall length is about 54” and the bottom folds out to 51”. Please let me know if you need any more specific measurements. I would say the size is a 3/4 or small in women’s. Gently used condition.