How do you make a coin that pulsates?

There are occasions when a new coin is launched that just stops people in their tracks. A coin that makes everyone ask “how did they even do that?” When I was in Chicago for the American Numismatic Association World’s Fair of Money last month, I saw such a coin. It’s a coin that pulsates in […]

How to beat the counterfeiters

The history of counterfeit money is as old as currency itself and, despite the use of the most sophisticated modern technology, the battle still persists today between the banks and the fraudsters. There was almost £30m worth of fake “round” £1 coins in circulation at the time the new 12-sided £1 was introduced in March […]