Just now read this thread. All the advise given by the guys before me is correct. And right here on TreasureNet. I will unburden myself, and I still get a little nauseated just telling about it. Some years ago I found a (KEY DATE) coin, I thought wow, what a great find, put it in a coin pouch with zinc penny's etc., That was my First mistake. At home I washed it off and rubbed it with a dish rag, That was my second mistake. I was rubbing it in my fingers while looking it up in a coin book thinking it might be worth a few dollars, My Third mistake, I did almost everything wrong I could of done. This (KEY DATE) coin, ONLY 56,000 were ever minted, and all had been put into circulation. It was the Holy Grail of this particular type of coin. I am sure it would of graded Fine to Very Fine. It had Great detail, All the letters on "Liberty" were clear etc. Sent it in to be Graded and Slabbed., and YUP, it came back "Genuine" Not gradable, cleaned. Did I screw up or what, YES I did. The worst part is I should of known better. A hard and bitter lesson to learn. So, New Guys, learn from our mistakes, ESPECIALLY mine. Pay attention to what you have found, if and when you find it, and if not sure, keep it separate, and don't do anything to it until AFTER you look it up. I learned the hard way, seeing this perhaps you won't have to. That's what is good about this Forum. As far as what I did?------Bless me Father, for I have sinned----