Coins are small, round disks made up of either metals or alloys (in some cases even synthetic materials). They are used as a medium of exchange and are standardized in weight. They are produced in ...

The first coins were minted by the Lydian state, now Turkey, around the sixth century BCE. Adhesive stamps, on the other hand, were invented by Rowland Hill in 1837, making them a far more recent crea...

Numismatics refers to the study and collection of currency. You’re probably familiar with the value of the coins in your pocket, but they may be worth more than you think. This is because coins and cu...