Recently bought a 1915 vintage SA 1903. Trying to understand the 6 46 stamped into stock between the butt swivel and the butt of the rifle and the G47 stenciled in white paint on the right side of stock near the butt. Gun reportedly used in WWII. Thinking the 6 46 may be when it left where it was used and the G47 something about when retrieved by the guy that carried it. Anyone familiar with these?