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 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 - such as one ounce of gold (abbreviated as 1 oz Au, where "Au" comes from the Latin word for gold, Aurum). Many of these feature famous movie characters.
Back to the Future is an American science fiction comedy film released in July 1985 and starring Michael J. Fox as Marty McFly, a high school student who accidentally travels 30 years into the past to 1955, jeopardising his own future existence.
The coin is produced under licence by The Coin Company Australia as legal tender under the authority of Niue. | 
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