It's a mod 1935 Brazilian, with banner and all matching numbers, if the bayonet is matching as well, qualifying target and if the frog and sling are with it, $900-$1200.
Those are incredible examples of pre WWII, peace time mausers. They are worth every penny.
I personally wouldn't shoot that rifle. Just put it in a nice warm, dry, dark safe and let it sleep. Bring it out every once in a while to add a little "Sheath" to it for preservation purposes and tuck it in again. There are quite a few out there that have been fired, pick up one of those if you absolutely have to shoot one.
The Brazilians, loaded up a 140grn round to 2800fps in the 1-9 1/2 twist x 29in barrel.
They are extremely accurate with loads producing that velocity. It's not uncommon for them to shoot into 3/4 in at 100 yards.
Beautiful rifles, a blast from the past. The 1908 Brazilian Mausers are just as nice but have their receivers in the white.