The Cook Islands, a sovereign state in free association with New Zealand, uses two official legal tender currencies. The New Zealand Dollar circulates in parallel with the local Cook Islands Dollar; at the same time, the government also authorises many legal tender coins in the Cook Islands Dollar currency for collector's purposes. Many of them are in standard sizes, including the half gram (0.5 g) of gold mini-coin format - such as this coin.
This ingot-shaped coin is one of a series of 12 coin mini-bars featuring characters and themes from the Harry Potter series of books and films, and features Bellatrix Lestrange.
"Bellatrix Lestrange was a pure-blood Death Eater, known as the Dark Lord’s most loyal servant. She was a member of the House of Black, an old wizarding family and one of the Sacred Twenty-Eight. A true Slytherin, she escaped from Azkaban prison and returned to Voldemort’s side to torment Harry and his allies." | 
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