[Eric in the Ozarks]

It's an 1891.
Manufactura Lowe Berlin.

There is only one small ding in the wood. It appears to be unrestored.
The Argentine crest has been buzzed off and a bit of bluing applied.
The number “L 3582” is stamped on the metal sections and the stock.

[SampleMan]

Ground crest is the norm for 1891 rifles, although the carbines all retain the crest. It has to do with Argentine export law and the fact that the carbines were surplussed at a different time than the rifles.

The 1889/90/91 model Mauser was the first smokeless powder Mauser offering and also introduced the stripper clip concept to the world. Although similar concept chargers existed before that.

It is chambered in 7.65x53, which was Mauser's first smokeless cartridge. What is now called the 8mm Mauser came first, but was not a Mauser development and not chambered in a Mauser rifle until the 1898 models.