Vintage 70s Oscar de la Renta coat Tan color

This is a 1970s Oscar de la Renta coat. Tog tan in color fully lined. Length measures approximately 31 inches. In very good condition except for the lining does have some staining in several parts near the armpit, and other places.I’ve tried taking pictures of everything. Underneath the lining the fabric from the coat also had another lining attached to it which has broken off in certain places as seen in pictures. The code exterior is perfectly clean. Not sure what material it is but looks like wool or a wall like material. All buttons are intact. Has two front pockets.