Regency full length cashmere coat with removable fox collar

Beautiful vintage full length cashmere coat. I believe my father bought this for my mother in the 1980s, it originally had the sash belt it now has two buttons for closure instead with satin lined pockets. It is an excellent condition, worn rarely through the years but has been stored in a cedar closet in a breathable garment bag. The measurements are as follows: Sleeve length 23 1/2 inches Full length 50 inches Shoulder to shoulder 19 inches Chest 17 1/2 inches There is no size, but I would say medium/large