This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 80%- The original bluing on this trigger guard shows edgewear and thinning, along with some light scratches and tool marks.
Metal - The metal is in very good condition with some small nicks and dings, likely due to the slip of a tool.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE