Niue, a sovereign state in free association with New Zealand, uses two official legal tender currencies. The New Zealand Dollar is the circulation currency for daily transactions, while the government also authorises legal tender coins in the Niue Dollar currency for collector's purposes.
A number of mints issue a large variety of commemorative, bullion and collector coins under the authority of Niue. These coins are dedicated to historical or general popular culture themes not related to Niue itself. Many of them are in standard bullion sizes - typically, one ounce of silver (abbreviated as 1 oz Ag, where "Ag" comes from the Latin word for silver, Argentum). Many of these feature movie characters. Some are also in innovative shapes, such as "Chibi".
Chibi (ちび or チビ) is a Japanese slang word describing something short (a thing, an animal or a person). The term is widely used to describe a specific style of caricature where characters are drawn in an exaggerated way: small and chubby, with stubby limbs and oversized heads. Coins of this type look like cartoon characters and have their corresponding shape; they are also very thick for their size.
This coin is part of a New Zealand Mint Chibi collection dedicated to Disney characters, and features Anna from Frozen.
The mint says about it:
Disney’s caring and determined Anna has adventured her way onto this 1oz pure silver Chibi Coin for the beloved film Disney Frozen! Officially licensed, the coin has been coloured and shaped to resemble this spirited heroine as seen at coronation day. Engraved on the obverse is the effigy of Queen Elizabeth ll, confirming it as a legal tender coin.
A high-quality, Disney Frozen-themed box encases the coin and includes a large window on the front for display. The coin is held in an acrylic capsule for protection against the icy conditions of winter! Printed on the back of the box is a Certificate of Authenticity and the coin’s unique number in the limited mintage of 2,000. | 
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