I was asked by a friend to check two M1's his son had acquired after his his father-in-law's passing. One was serial number 760 and had been converted through the years to an M1D. The barrel was a post Korea replacement and a Weaver K4 was installed. The original Director of Civilian Marksmanship box and paperwork dated mid 1990's was there. His father-in-law was a career officer and also bought a Winchester M1 at the same time which I checked out too. Needless to say it was an interesting morning. I inquired what would be happening to the rifles and the son was an E9 in the Air Force reserve and he said he would probably be keeping them.