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 - for example, two ounces of silver (abbreviated as 2 oz Ag, where "Ag" comes from the Latin word for silver, Argentum).
This coin is part of a New Zealand Mint series dedicated to the Star Wars movies and features the famous Death Star.
The Mint says about it:
"Incredible ultra high relief coin made of two ounces of silver in proof quality. The silver coin depicts the Empire's ultimate weapon, the Death Star - the huge space station which has a firepower that can destroy an entire planet.
Innovative embossing techniques achieve a stunning Ultra High Relief effect that, combined with the convex shape of this coin, creates an amazing 3D design. The Death Star seems to be flying towards the viewer." | 
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