Great suggestions.  I did as you suggested and the stock loooks great.  It was still a very dark walnut and I tried BLO without any stain.  It looks great.  There are no gouges or any real dents that need to be messed with. 

I did not touch it with sand paper, just one of those 3M scrub sponges and dish soap.

There is no cartuche.  Just the nice circle P and the other small mark which may be a R, or a 13 or a 18 or something else near the trigger guard.

The metal looks really nice after XXXX steel wool and WD-40.  The barrel is a nice dark blue, except the end where a bayonet covered the barrel.  The other metal is really nice, but very faint case hardening.  The barrel took some solvent and a brass brusk and now looks almost mirror like.