■ I have found a pure zinc penny. I believe the year is 2018. How do I get it checked out?
Since modern U.S. 1-cent coins are composed of a thin coating of 2 percent copper on an otherwise pure zinc planchet, it is entirely possible you have an error cent. The best way to ensure no one chemically treated the coin to strip the copper “skin” is to send the coin to one of the major third-party certification services. This can be done through a coin dealer or directly through Numismatic Guaranty Corporation
