I found a model 22 Thunder Ranch, so this one has to go.
The finish is rough, there's some pitting and the grips are well used and not numbered to the gun. The cylinder and star extractor serials match each other, but not the gun. The barrel serial matches the butt.
There are two scratches in the bore, but rifling is otherwise strong. The lockup is solid. I'm told this is from the later 1946 batch of Brazilian contracts.
$395 shipped from my FFL to yours, or C&R.
First "I'll take it" followed by a pm...
Here is some info about the revolver:
Earliest Brazilian Contract Model 1917