His company, Portland Mint, sells old pennies in bulk — 40,000 pounds (18,100 kilograms) at a time — to investors angling to ...

Coin collectors draw big headlines when they sell their rare coins for thousands or even millions of dollars, but the vast ...

Every penny costs 3.7 cents to manufacture and the U.S. Treasury lost $85.3 million in 2024 producing them, the U.S. Mint ...

Discoveries by detectorists, as well as beachcombers and mudlarkers — who search for items on riverbanks — shine new light ...