Vintage Gentleman's German Wool Coat

This coat was from my grandfather who brought it back from Germany in the late 1930s. The outside of this coat is a dark grey made of 100% wool and the inside lineing of the entire coat is satin/silk. Could fit a taller women, this is a very long coat, Im 5"6' and wear a mens Large and its waaay too big on me It weighs at least 20+ lbs