Vintage Embroidered Satin Dress

Vintage black satin embroidered dress with spaghetti straps and tiered skirt. Size tag says 6, but I couldn’t close it on my size 4/6 mannequin. Approximate measurements laying flat are 15” pit to pit, 12 1/2” waist, 46” length from top of strap to hem. It has an inner liner. Dress is black, but it has some bleaching throughout and especially on one side that give it a reddish color as noted in last picture. It also has some frayed threads throughout as well.