I just won this on an auction. I have been looking for a brass (copper?) tsuba NCO sword, but they seem to be hard to find in nice condition. As you can see, the tsuka is missing a screw and the tassle hangar loop was, at some point removed and put back in the wrong position (changing that should be easy). Does anyone know where I may find an original replacement screw? I am expecting this to be hard to find.