This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 85% - The original bluing on this trigger guard shows almost no thinning or edgewear, but it contains a cluster of small scratches and dings at one end of the bow.
Metal - The metal is excellent condition, with the exception of a few tiny dings.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE
