Jon-Paul,

I would guess your rifle is an arsenal refurb, probably post-Spanish American War. Arsenal replacement stocks usually lacked the cartouche. It's possible yours was simply sanded out, but it would take more sanding than most bubbas are willing to do.

A common arsenal refurb combination is a replacement stock and a 1901 sight. Its the one with a lever securing the windage adjustment and a little tiny peep sight stuck between the legs of the sight ladder.

Most likely your rifle went on campaign. You might try a SAS check to see if there are any records for that S/N, what unit it was issued to.

Don't forget to take it out shooting - they love to be shot!

jn