Admittedly I didn't know much about them when I bought it. Know a bit more now, still not much. I'd have still bought it as a parts gun. Stripped down now I can see the all numbered parts match, 4451. Looks like it's an 1897 production. No Turkishmarkings, only stamps are from Mauser and proof marks. Lower is blued inside also so probably it was a reblue as I suspected by the machine marks being polished away on the outside. Barrel has definitely cut down. Rifling looks OK kind of shallow. Grips are reproduction and fit very poorly. Debating sending off the pistol to Luger Man and have him replace the barrel and restore the pistol. Not much collector's value is there already with the reblue and messed up barrel so might as well make it a looker and shooter. Also, it really makes me appreciate the ease of disassembly of later pistols. Hahaha. But it really is a thing of beauty. Everything is machined.