Vintage Women's Burberry Trench Coat with wool lining - Saks Fifth Avenue

My mother bought this at the Fifth Avenue NYC location of Saks Fifth Avenue in the early 1970s. It is in excellent condition. I have never worn it, but I know she did while she lived in the Philadelphia area. I do not know the size, but she wore what would be today's size 16. It measures from the top of the back collar to the hem apx. 50 inches. The lining is perfect. Included is the wool/camel hair lining, including the lining for the collar.