Why ribbed the coins?
Initially, the value of the coin was equal to the amount of metal that is contained in them. And scammers are often cut off from the edges of the money by collecting gold and silver. Overcome it was incredibly difficult, because not everyone with a worn scales, and to determine exactly was impossible to face.
Oddly enough solution to this problem proposed the notorious Sir Isaac Newton, who turns out was also a staff member of the British Royal Mint. He proposed to do at the edges of thin coins notches, because of which the ground off the edges become immediately noticeable. This procedure is carried out and to this day, although the need for it had long since disappeared. After all, much more profitable to counterfeit banknotes and easier. A coin edge has since been called a herd from the Old English - gyrdan (belting). In the second half of the XVI century, the French invented a device for applying labels to the herd. The first inscription appeared on the French gold crowns in 1577.
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