This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 98% - The original bluing is dark and even with no major wear. There are small tool marks at the front and rear of the bow, but no other scratches, edgewear, or fading.
Metal - The metal is in excellent condition with no damage except for the tool marks mentioned above.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE