This is a standard steel floor plate from a Winchester Model 70 rifle.
Bluing - 85% - This floor plate has factory bluing. The bluing on this floor plate is mostly smooth and even, showing minor edge wear, and has one significant scratch that extends half the length of the plate.
Metal - The scratch mentioned above goes into the metal.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE