70s evening dress Sz 10 prom peach ruffle Union Made in the USA feminine empire

Stunning gauzy, ruffled with bow, peach evening dress from the 1970's. No stains, holes, snags, or tears. I can't find any signs of wear. This is a vintage size 10 which is different than modern sizing. Please look at measurements below closely. Armpit to armpit - 15.5" Waist laid flat - 13.75" to 14" Length - 57.5"