Lots of questions about guns like this. It appears to be a first or second model 1890 (no locking lug cutouts in the frame).
* The serial number would put it in the first year of production for the rifle it belonged to (so 1890 if it is from an 1890, 1905-06 if it is from a 1906).
* It looks like the trigger guard does not match that particular rifle, so Jim may be right that it looks like a mix-master rifle.
* The barrel has been changed, since the 1890 had an octagonal barrel.
* The trigger guard looks like it has been through a fire at some point. If it is the correct trigger guard for that rifle, odds are that the whole rifle went through a fire.
* 1906s had serial numbers on the receiver as well as the trigger guard.
* The forearm is correct for a 1906 first year gun.
* The butt stock looks like a replacement. This may explain why the trigger guard looks like it went through a fire.