When my grandfather died i received a world war 2 bayonet. I was told it was german made. I can make out 2 numbers on the base of the blade, one on either side. I was wondering what the best way to restore the value of the bayonet was. I realize that there are probably alot of these out here, but anything i can do would be helpful. I was thinking like sharpening the blade, or varnishing the handle, shining the holster, etc. Im new at this so i dont know whats best to do. The blade looks pretty worn as well.