New guy has questions about a 660 Code 1940 G29/40 with Navy Markings. I have an all matching 660 code G29/40 K98 with the Navy M marking on one side of the stock and O 412 U.F.K. 8 stamped on the other side of the stock right above the butt plate. I know the "O" marking indicates issue to the eastern fleet. Does anyone have any ideas or know what the U.F. K. 8 marking stands for or indicates? Thank You.