Out Brook Vintage brown trench coat with removable plaid flannel lining

Out Brook Vintage Brown Trench coat Pointed collar Shoulder pads Large button front pockets Multi colored plaid flannel removable lining Satin inner lining Long sleeves No size or material content tag. Please see measurements. There is a small light spot under one arm, and several small black spots on the interior lining. Underarm to underarm: 23" approx. Length: 36" approx. I am a size 16/XL and 5'9" I can fit into this coat, but cannot close it, and it's tight at my shoulders. When I stand up, the bottom hem comes to my mid-thigh.