This is a standard steel floor plate from a Winchester Model 70 rifle.
Bluing - 85 - 90% - This floor plate has factory bluing. The finish shows almost no edgewear or fading. It contains a few very small blemish in the bluing, and few tiny tool marks.
Metal - The metal is in excellent condition with no notable damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE