This is a .22 Hornet steel floor plate from a Winchester Model 70 rifle. The underside of the floor plate is stamped with an "H" and fits the .22 Hornet magazine follower spring.
Bluing - 90% - The bluing on this piece is shows some signs of wear on the edges.
Metal - The metal on this piece is in very good condition, with no significant scratches, nicks, or other forms of metal damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE