Vintage oversized trench unknown size looks medium to large…beautiful

Beautiful heavy trench ….really love the oversized trench look but not quite working on me…sad to part ways with this lovely piece Too big to wear it in classic style… Feels like medium/large In the pic the back gathered with belt Please see measurements before buying! (For reference, I’m 5 ft 5 in and 122 pds, wear 25 jeans, 0-2 normal sizing) All approximate measurements (did my best) 😊 From backside- top of the back (bottom edge of collar) down to bottom of coat is 45 inches Shoulder to shoulder- 18.5 inches Armpit to armpit (jacket buttoned) 23.5 inches Waist (where belt is)- 22.5 inches