Errors are common feature in valuable coins and can push values up to six figures or higher. Trending Now: 9 Antique Items ...

You don’t usually see errors with proof coins, but there are exceptions. One involved 1975 dime proof sets, which that lacked an “S” mintmark (from the San Francisco Mint).

Norsk Tipping apologised to 47,000 gamblers for incorrect lottery winnings due to a currency error; Prize amounts were wrongly multiplied by 100 instead of divided by 100 from euro cents to kroner; ...

A Norwegian lottery company has apologised to 47,000 gamblers who were mistakenly told they had won huge sums in a lottery, ...

As with just about any asset, a coin's value is determined by its market demand. This means that coins in short supply often see higher demand -- and higher values. With coins, supplies are limited ...

You don’t usually see errors with proof coins, but there are exceptions. One involved 1975 dime proof sets, which that lacked an “S” mintmark (from the San Francisco Mint).

You don’t usually see errors with proof coins, but there are exceptions. One involved 1975 dime proof sets, which that lacked an “S” mintmark (from the San Francisco Mint).