I bought this rifle off of a guy in California for $75.00. (I figured any gun for $75 was a good deal). I don't know what it is other than it has a Mauser action and it's some kind of .30 cal. It has some markings on it. On the left hand side of the barrel, right in front of the receiver are stamped the numbers "44579" The numbers are not aligned very well, leading me to believe it was stamped by hand. On the top of the receiver, forward of the bolt, is stamped "Fabrica De Arma" in a U-Shape. Directly below that is stamped "0 Ledo"?? (I think). And directly below that is the numbers "1913". On the underside, the base plate is stamped with "7764" in two spots. One of them with the letter "I" above it. It's got some wear in the bluing and a tiny bit of rust spots. The stock is pretty much garbage because someone tried their own x-acto checkering job and tried to modify it some, but it's still functional as a stock. If I knew what caliber it was I'm sure it would fire and function just fine. I've never fired it partially because I don't know what ammo to buy. Can anyone tell me what this is and what it may possibly be worth? One of my buddies looked at it and although he couldn't tell me what it was, he suggested tearing it down and using the action to build another rifle of my choosing. Any information you guys could give me would be appreciated. Thanks!