The case colors look in the very least to be 'enhanced' w/a torch flame w/small tip.
It's not that uncommon to touch up a small blank area of an otherwise OK job w/a torch as it comes out of the quench. But doing a complete job w/one or trying to tease the colors back to life on a gun that they are just plainly worn away is usually obvious.
The bluing on the trigger guard, top lever and the forend iron look redone,,over polished, rounded edges.
The simple line engraving on all three parts looks buffed/'washed' out.
Maybe just the pics,,but that's what I see.
