Regency Cashmere belted long vintage wool trench pea coat L

Very thick and warm yet flexible and soft cashmere pea coat, lined with a sturdy satin. Unknown materials but the body is presumably pure heavy cashmere felt, and the lining is a satiny twill of possibly acetate. Long length, comes down to the knees. No marked size but fits a large perfectly. 17" across the shoulders 22" across the chest/waist. Belt closure only with buttons at collar to hold fast against cold weather. Purchased originally in the 1970s or 80s. Very little wear over the years and still in excellent condition. Truly a pleasure to wear!