A penny that was mistakenly made from copper instead of steel in 1943 has sold at auction for $1 million, according to a 2012 story by ABC News. It was bought by Texas Rangers’ co-chairman Bob R. Simpson; the seller was Legend Numismatics, a New Jersey dealer of rare coins.
So what makes this one penny so much more valuable? They were supposed to be made from steel in 1943, according to the United States Mint, as copper was heavily coveted to make shell cases for ammunition used by the armed forces in World War II.
However, the U.S. Mint sites in Denver, Philadelphia, and San Francisco accidentally produced a few copper coins, according to Coin Week, and they began selling at auction as early as 1958.
Bob Campbell, a rare coin collector, told KTRK News that he bought his 1943 penny for $20,000.
“It’s been a pretty good investment so far,” Campbell said, in light of the auction sale.