So I went out to check the mail and I got a razor a few days faster than I thought I would. It's a tortoise handled Bismarck that I picked up for about 13 bucks. Theres a little rust on the spine and the face of the blade, tough nothing on the cutting edge. What should I use to bust rust on it? Should I stay away from anything too abrasive like sandpaper and just stick to polishes or should I send it off to have it done by someone that's restored straights before?