The price of copper was so high in 1856 that it was no longer feasible to make a standard-sized penny without ... be valuable is to check it for errors, key dates or strange mint marks, as ...

The date of a coin can make it more valuable, especially if it's in great condition because old coins have more time to be damaged and lose their luster. Certain mint marks can also add or ...

One of the most well-known valuable wheat pennies is the 1943 steel penny. These pennies were minted during World War II when copper was in short supply, so the U.S. Mint decided to produce ...

Find Out: These 11 Rare Coins Sold for Over $1 Million Explore ... The only variety of a dime from 1965 was the one without a mint mark produced by the Philadelphia Mint — but a lot were minted.

The coin is considered the holy grail of numismatic collectors because it was created in Philadelphia without the approval of the U.S. Mint and are as rare ... Mint marks are letters on coins ...

While buying known rare coins can be a costly venture ... collectors because it was created in Philadelphia without the approval of the U.S. Mint and are as rare as hen’s teeth.