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 coins under the authority of Niue. Most of these are commemorative and collector issues 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). Those issued at prices much higher than their bullion value are separately listed in the Non-Circulating Legal Tender (NCLT) silver ounce section of the site.
Listed here are the silver ounce coins targeted at bullion investors, which are initially released at prices close to the value of their precious metal content. | 
