Springfield Research has a list of military firearms, Krags included, in which individual serial numbers are referenced as to where , and sometimes, to whom a gun was shipped. Your serial number apparently does not appear in these records which are far from complete. Does not hurt value, just no added value had it been shipped to someone famous or to a famous unit such as the Rough Riders (of course, an 1899 Carbine could not and was not used during that conflict) Dave