it has a bent bolt and at this point I really can't remember the spacing on the barrel bands but one would expect that a rifle stamped 1900 would have the straight bolt. I do not recall a serial on the bolt knob so I'm going to guess that it was modified like that and ground down so that serials would all match to an uneducated buyer. I will probably pass on this one but will keep my eyes open in the future, I love cock on close rifles and was pleasantly surprised when I cycled the bolt and felt that smooth open and firm lock on close. I wasn't aware that any of the mauser families had cock on close bolts.
ignore my complete lack of capitalization. I still have no problem correcting your grammar.
I never said half the crap people said I did-Albert Einstein
You can't believe everything you read on the internet-Benjamin Franklin
Bean counters told me I couldn't fire a man for being in a wheelchair, did it anyway. Ramps are expensive.-Cave Johnson.