A rare 20 cent coin from the 1970s is worth up to 400 times its face value simply because of the year it was minted. Aussies are being urged to look out for the “hard to find” coin as it is ...

Both sides of this coin were with identical 20 cent reverse prints. Again, that means there was no head in sight. This rare gem went for $1,265 in 2008. Another erroneous French coin, this time ...

Over time, coins can become rare collectibles that are sold for thousands ... For example, the 1792 Silver Center Cent J-1 was originally worth one cent — the penny of its day — when it ...