I found my first real coin find last weekend.it's a 1882 indian head i found on some land that my family has in baton rouge,la. Me and my Metal detecting buddy , spector551, have been having some luck out on it. we're excited to find a coin that old out there. its the same place i found that watch fab and my last bullet post ,mm 515.thought i would share a little of my excitment about my hobby. what is the best way to clean a old coin??