This is a standard steel floor plate from a Winchester Model 70 rifle.
Bluing - 90% - The bluing on this floor plate shows wear along the edges and slight fading throughout.
Metal - The metal on this piece is in very good condition, with only very light scratches and no other notable nicks or other marks of metal damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE