It looked pretty bad when I popped it out,Gave it a water and brush washing but still couldn't get the date off it so I put it in olive oil for a half hour and sharpen up a pencil and remove what wanted to come off ez and put it back in the oil.Did that about five times.Washed it with soap and water,dry well.Then waxed with black shoe polish,ya black shoe polish.Read the back of a can,its good on leather, metals,and wood.museums use it alot of times.If you use a lot like I do,I take a one pound can of umber paste wax take out half and put it in another tin and add a big can of black polish[8oz?]and mix well.If lumpy add a little thinner to it.Great on shop tools.Hand plane.vice parts, saw table tops, saws, etc.