Vintage lace overlay cocktail dress

This vintage dress appears to be handmade. It looks to be from the 60s era. There’s a metal zipper that is still in great condition. It is beautifully dirted and finished. There is some fading in discolouration on the fabric as shown in the photos. There’s also some discolouration on the inside lining again as shown in photos. There’s no size on the garment but I would guess it’s about a six to an eight.