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, collector and bullion 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 based on the troy ounce - such as the mini-coin format of one twenty-fifth of an ounce of gold (abbreviated as 1/25 oz Au, where "Au" comes from the Latin word for gold, Aurum).
This coin is part of the "Czech Lion" series of gold and silver coins, minted since 2017. World bullion coins are often dedicated to national symbols, therefore the "Czech Lion", which is the first issue of its kind intended for the Czech market, is not an exception. The weight of this gold coin by the Czech Mint is one twenty-fifth of a troy ounce.
The Mint says about it:
Every Czech knows that a two-tailed lion is the dominant heraldic animal of the Czech Republic. But how did this exotic beast get into the emblem of a country situated in the heart of Europe? The legend of Bruncvík, the mythical prince, who left his beloved woman and set out in the world to seek honour and glory, provides a hint. When he was shipwrecked in far Africa, he helped the animal king to fight the beast. Since then the grateful lion followed him, they experienced many adventures and won a miracle sword. Bruncvík returned to the Czech lands after seven long years and fought for the heart of his beloved one. They lived happily until death, and immortalised the faithful lion on the banner.
Old chroniclers offer more plausible explanations, but they like to colour their stories, so you can find a number of discrepancies there. The first truly documented Czech lion was a symbol of the Přemyslid dynasty and appeared on the equestrian seal of Vladislav Henry in 1203. The lion became the national symbol during the reign of Ottokar II of Bohemia, the Iron and Golden King.
The Czech Mint reworked all variants of investment coins in 2020, but the main idea remained. In addition to the Czech lion in a not-traditionally realistic presentation, the reverse side of the gold coin presents two more symbols of Czech statehood - the St Wenceslas crown on the head of a two-tailed beast, and an eagle on the shield, which is a synthesis of the St Wenceslas, Moravian and Silesian birds of prey. | 
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