This is a standard steel floor plate from a Winchester Model 70 rifle.
Bluing - 75% - This floor plate has factory bluing. The finish on this piece has edgewear and fading, as well as some light scuffs and scratches.
Metal - The metal is still in excellent condition with no notable damage. A few extremely tiny tool marks are visible where the floor plate will meet the trigger guard.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE