Vintage Amanda Smith Satin Pajamas

My mother-in-law strikes again! She pulled these beautiful satin pajamas out of one of her drawers... she said that her sister gave them to her a long time ago, 80s or 90s. They've hardly been worn at all, but there is a small stain on the bottoms beside the right seam... I will try to remove it and will update listing if I'm successful. They are size extra large Armpit to armpit 22" Length from shoulder 21" Bottoms: Waist 34" Elastic is a little loose with age, but stretches to 40" Inseam 28" The bottoms are a pale pink, and the top is pale pink with a floral pattern in peach, green, pink, and blue. The buttons are satin covered.