1877
IHC in the coin dealer junk bin - 15 cents. Took it back, they said, they could not tell for sure. Granted, grade would be AG3 and more than likely FR, but it was still an 1877!
Traded it for 90% U.S. silver coinage, waited several months, and turned that silver into the 1914 D and 1911 S Lincoln cents that are still in my collection to this day.