Vintage 1950s? Chantilly Lace Maxi Dress Evening Gown Navy Blue Delicate Feminin

Vintage 1950s? Unbranded Chantilly lace Maxi Dress Gown in dark blue with redish purple lining, sheer short sleeves, sweetheart neckline. The base fabric has spaghetti straps and is cut shorter than the lace on shoulders to give it a draping effect. Side with a metal "AERO" zipper, Made in USA. It has loops for a belt, but no belt is supplied. Size Small possibly Medium Please see photos for approximate measurements. In excellent pre-owned vintage condition, but there are a few small breaks in the lace on the back. No stains or major rips.