Coins have ridged edges to stop people shaving off metal.

Wacky WorldMoney

When coins were made of precious metals, people clipped the edges. Reeding made tampering obvious, and many coins keep it today.

Another wacky fact → All facts

Explore more Wacky World facts

Compound interest makes money double faster than you think.The word “bank” comes from a bench.Indian banknotes carry text in 15 languages.