This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 75% - The original bluing on this trigger guard shows very little fading or edgewear, but it has many small dings, scratches and toolmarks throughout. There's also 1 notable area at the top of the bow where the scratches have completely removed the bluing. This spot is less than 1/4" in diameter. Please see photos. There is no damage to the metal in this area, only the bluing.
Metal - The metal is in excellent condition with a few tiny dings.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE