Mine is stamped 1914, made by the Springfield Armory, and the serial number is 17161. There was no scabbard included, and it's been painted somewhere along the line. There are a few nicks in the edge of the blade, as well, but I don't know for sure if they came from combat or somebody playing around the backyard. There are two that look distinctly like blade marks, but maybe 4 other ones that look like regular ol' dings.
I know some troops painted these swords in combat to obscure any glare that might come off the handguard or blade, but I honestly have no idea what my paint job indicates. I know the US sold a good number of these sabers to the Chinese in the 1930's, and they slightly altered the appearance of the swords by polishing the handguard and blade, but mine is very clearly painted.
So here are some pics:




I'm trying to find out if the paint means anything special, or if I'd be better off removing the paint. I've also been trying to loosen up the handle nuts/bolts to see about making wooden grips, if I can't find a good reproduction set. Are there any good methods for loosening 98-year-old nuts and screws? Or, am I better off just leaving it as-is? Finally, is there any way of telling if, when, and where this sword was used in combat? I've heard these were used in the American southwest chasing Pancho Villa, as well as in Europe during the War to End Wars.