A long time ago, I was a professional numismatist – that is, I was paid to make judgements on coin investments.

In October 2007, the Guinness Book of World Records certified the coin as the world’s largest gold coin. The coin’s front ...

COLLECTIBLES Did you know the most expensive US $1 coin is worth $10 million? Take a closer look at your spare change in case you have a rare specimen, as some have been sold for astronomical amounts.

An American silver coin dating back to the 17th century, before the United States was founded, has sold for a record-breaking $2.52 million at auction.

It has coins from the Mexican War of Independence and Mexican Revolution that are being seen outside of Mexico for the first time since 1970. There also are rare coins worth several million dollars.

One of the biggest advantages of looking for rare coins at flea markets and garage salesis that the sellers probably don’t know how much money a coin is worth. For example, a few years ago a man ...

A rare £1 coin featuring King Edward VIII, the controversial monarch who abdicated the British throne in 1936, has sold for a record £1m to a private collector. Rare £1 coins: how to find the ...

Find out the list of top 10 rarest and most valuable coins in the world that value more than one could imagine, as much as millions of dollars.

Where to find rare coins? John Feigenbaum, publisher of the rare coin guide "Greysheet," told USA TODAY that rare coins are hard to come by.

Some of the world’s most expensive coins are among the rarest, and many have a great story behind that rarity. Not all rare coins are super expensive, so coin collecting can be an affordable ...