This is a featherweight aluminum floor plate from a Winchester Model 70 rifle.
Finish - The anodized finish on this floor plate is notably faded, resulting in a blueish gradient finish across the piece.
Metal - The metal on this piece is in excellent condition. There is a few minor nicks along the edge of the plate, but no scratches 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