I'm going to go out on a very flimsy limb, here, and guess that you think you've hit the motherlode because it is a "No S" cent. If you had a copy of the "Guide Book of United States Coins" (aka the Red Book) you might learn that the valuable specimen is a proof coin, not a business strike, and billions of business strikes with no mintmark were struck in Philadelphia. I realize that you have only been a member of these forums since January, 2017 but in that time, there have been umpteen threads posted about the "No S" coins. You must have missed them. In any event, there isn't one person here who can quote a value for your coin without first seeing good, clear photos of both sides of the coin. Chris
