Serial number range will tell a much.  Oddest thing, in my experience, is a 1903 acceptance 'Cartouche' on an Italian stock.  They are usually 1899 & 1900 from my observation, but then, I'm open to learning that I don't know a lot!  If its a really nice Krag and you can strike a good price, Buy It!  Put a readily available 1896 sight on it and you will be real happy.  (Keep the 1892 sight as a conversation piece).  I am sure I have seen Italian walnut hand guards for Model 1896, 1901 and 1898/1902 rear sights.

---