The New Zealand one-dollar coin ($1) is a circulating denomination of the New Zealand dollar. It was introduced as a coin on 11 February 1991 (with coins dated 1990) to replace the existing $1 note. There had previously been occasional issues of commemorative crown-sized dollars, but these were not meant for circulation.
The depiction of a kiwi on the reverse helps give the New Zealand dollar the colloquial name "Kiwi (dollar)", although the term was in use even before the $1 coin was introduced. The reverse design by New Zealand artist Robert Maurice Conly has not changed since the introduction of the denomination.
The composition of the alloy is: 92% copper, 6% aluminium, 2% nickel. The edge has "eight equally spaced alternate segments, four milled and four plain". | 
