[Arizona man]

hi folks, I'm new to this forum I can usually do research and find the information I'm looking for however this one has stumped me, it has very little identification markings on it above the receiver on the left side of barrel is stamped 1877. It also has a date of 1889 on the butt plate, and various European proof marks all over receiver the bore is quite large I had to use .410 cleaning brush for the barrel it is rifled and what looks like a magazine is not it does come out of the rifle but only when separated from stock. I have looked online at all the mauser's I could find and when I type in 1877 or 1889 it reverts to the model 71 yet none of them look like this help please?? I apologize for the bad pic's but should be enough image to identify.

Thank you so much

 

[Arizona man]

I would like to thank those who at least looked at my post I ended up joining a military museum forum and in 1 hour got my answer, it's a Dutch Holland Beaumont Vitali rifle 11mm in case someone else was curious

 

[nuclear]

Very cool. I have never even heard of that rifle before.