The penny that pretended to be older than the Mint
Look at the date and the math falls apart. 1759. The United States Mint did not open until 1792. The country itself did not exist in 1759. Yet here is a U.S. one-cent piece stamped with that year — and the Mint struck it on purpose.
By the early 1980s the penny had a money problem of its own. Copper had grown so expensive that the old bronze cent — 95% copper, weighing 3.11 grams — was edging toward costing more than a cent to make. So in 1982 the Mint switched the penny to a zinc core with a thin copper plating, dropping the weight to 2.5 grams and the copper content to roughly 2.4%. It was one of the biggest changes to the coin since Lincoln first appeared on it in 1909.
A change that large needed testing. Would the softer new blanks feed through the presses? Would they take a sharp strike — the blow that stamps the design into the metal — without cracking or sticking? To find out, the Mint needed a coin-shaped object it could hammer out by the handful and hand to outside metal vendors, with zero risk that a stray piece would slip into circulation and be spent as real money. The answer was a coin that was deliberately, obviously not legal tender. That is this piece.