I don't think it hold a great deal of value as we find those quite often. I live near the old Ft. Oglethorpe, Ga base where they had a lot of WWI troops. I have found six of them myself.
Not nearly as excited now, I thought it was my wife's Grt grt grandfathers he brought back from CW. We did find a English made Confederate rifle. But apparently my FIL sold it.