This is a standard steel floor plate from a Winchester Model 70 rifle. It appears to have been refinished.
Bluing - Refinished. The new finish on this floor plate contains no edgewear, fading or notable scratches.
Metal - The metal is in very good condition, with some small scratches and dings that remain visible underneath the new finish.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE