i metal detect and have an old black church that has yielded some of my finest mid 1800s coins. I went back today and found a very crusty penny. I assumed it would be either a wheat or memorial penny and lightly began cleaning it with a wooden toothpick and discovered it is very likely a Flying Eagle cent. One of my bucket list coins. I immediately stopped and want to know how to best proceed. I can make out the reeding along the rim. I see the word United and 18 for the date. I have never sold any of my coins and don’t anticipate selling this (unless one of you has a fat checkbook and must have it!!!). I generally clean my coins for MY enjoyment but would like to protect it as much as possible. Any suggestions?