But Australians have the opportunity of coming across another rare 50 cent piece. Victorian-based coin dealer, Downies Collectables, recently sold a rare 1988 50cent coin for an eye-watering $14,750.

A rare nickel stored in a bank vault for over four decades fetched $506,250 in an online auction. While most five-cent coins carry only their face value, a few varieties are worth the thousands due to ...