My uncle died and left me some tools. Among them I found this old axe head. It says True Temper 3 1/2 lb. I don't know anything about this stuff, so I've done a little research on the Internet. It seems like the more I research, the more I found out I don't know, but I think this is a Yankee profile. I would deeply appreciate any help I could get identifying this thing and figuring out the best way to restore it. Should I polish it? Should I clean it and retain the patina? Should I grind down the burrs on the poll, or leave them?