I know it is not really a "relic" but I have a question about it. It was my grandfathers and based on the serial number it is about close 80+ years old and was just sitting in my dads closet for years. He gave it to me for xmas last year and I was wanting to get it cleaned up a little. The barrel and receiver has surface rust and I was wondering what is the best way to deal with this. It doesn't need to look new just not rusty. I am thinking about hanging it in my den on the wall so waht would be the best way to keep it looking good?