“U.S. Lincoln one-cent denomination coins used to be composed of 95 percent copper, however, since 1982 have been made of 97.5 percent zinc with a 2.5 percent plating of copper."” — Dr. Mike Fuljenz ...

The Royal Mint has launched a new £5 coin, which forms part of a nationwide code-breaker challenge inspired by Sir Isaac ...

Currently, gold coins are valued at one ounce, weighing 33,93 grammes and are priced according to international prices that include production and bank charges, making them very expensive. As of ...

The coin design includes numbers, letters and symbols that act as a clue ...