i have a 1961 gold penny.. it has 12-31-74 stamped next to the date.. the weird thing about the penny is why would you date it many years after it was made?
No, you have a 1961 copper cent that someone has altered, most likely in a kiddie's chemistry experiment.
People are always stamping cents with dates, initials, outlines of states, JFK, etc. I am sure the date refers specifically to new years eve. Whether a party or commemorating the first full year of US gold ownership legally since the 30s, only the involved parties really know.
Good thinking desertgem! When you think about it, that is the year when the Gold Repeal ended, which was started by FDR in 1933.
12-31-74 is the day FDR's ban on private ownership of gold ended. I am sure that is the event the date on the gold-plated cent refers to.