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 features Commander Spock from Star Trek.
The Mint says about it:
Our Chib® Coin series for Star Trek now includes the half-human, half-Vulcan, Commander Spock. Made from 1oz pure silver, this coin has been designed to embody Spock right down to his blue uniform and pointed Vulcan ears and eyebrows!
As this is a Niue legal tender coin, you will find the effigy of Her Majesty Queen Elizabeth II on the obverse side. If you want to display your unique Star Trek collectible, then the large window in the themed packaging allows you to leave it out untouched. However, inside the coin is protected by a specially designed acrylic case, so it can be removed. The Certificate of Authenticity is printed on the outside of the box, along with the coin’s unique serial number. | 
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