My Great Grandfathers brother, Armond Dare Willis's 1911A1 just came into my possession. He served in WWII in the Navy as a Commander, he was a landing craft operator on D-Day. He served around 10 years and brought this pistol home with him. It has been sitting under a dresser for the last 25 years. I am new to 1911's and am not sure exactly what I am looking at, just want to know if it is all original, and an approximate value. Thank you for your time.