Pierre Balmain 4 button vintage women's coat

Balmain coat was purchased from a friend who owned a vintage clothing shop in Los Angeles about 10 years ago. Worn only maybe 5 times since then. Not worn at all for the last 5 years. In excellent condition. No tags or markings other than the one on the back of the collar as shown. I am 5'9" for reference in the photo and currently a size 12. Bought the coat when I was a size 4. Has fit at every size and the side slits make the coat flexible and flattering. Almost more like a cape. Slits on the sides fall where you would naturally reach for pockets. Falls about mid thigh on me and the sleeves end just above the wrist. Textured fabric in great condition, very minor pilling around the bottom and sleeve edges as shown in photos. Tag has come unsewn on one side and it appears as if the lining may have been mended (also pictured for reference). Feel free to ask questions!