This is a Super Grade steel floor plate from a Winchester Model 70 rifle.
Bluing - 98% - Overall, the bluing is in pristine condition, with only a few minimal marks of wear on the edges of the piece.
Metal - This piece is in excellent condition, with no significant scratches or nicks. There are some very minor scratches consistent with regular light rifle use.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE