The smallest mintage of New Zealand predecimal general circulation coins was the 1961 Halfcrown with only 80,000 minted.
The smallest mintage of New Zealand decimal general circulation coins was the 1997 Two Dollar coin with only 1,008,000 minted.
From 1933 until 1940, the smallest denomination New Zealand coin in circulation was the Threepence. From 1940 until 1967, the smallest denomination New Zealand coin in circulation was the Halfpenny. All other predecimal coins circulating in New Zealand prior to decimalisation were mostly British with some Australian coins. Some of the British coins may have included the Farthing and maybe even some fractional Farthings. From the introduction of decimal currency in 1967, the smallest denomination New Zealand coin was the 1 cent coin until the 1 and 2 cent coins were withdrawn and demonetised in 1990. From 1990, the smallest denomination New Zealand coin was the 5 cent coin until it withdrawn and demonetised in 2006. Since 2006, the smallest denomination New Zealand coin is the 10 cent coin.
New Zealand withdrew its two cent coins from circulation in 1990; the smallest denomination coin in NZ is now the ten cent coin.
The two related links below show New Zealand's predecimal coins and New Zealand's current coins.
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Prior to 1933, New Zealand used mainly British coins and a some Australian coins.
The head on New Zealand coins is that of the New Zealand Queen, Elizabeth II. Her representative in NZ is the Governor General.
All New Zealand silver coins from 1933 to 1946 had a silver content of 50%. From 1947 onwards, all New Zealand "silver" coins were made from a copper-nickel alloy.
With the possible exception of "Traders Tokens", there were no New Zealand coins minted prior to 1933. Any coins circulating in New Zealand prior to 1933 would have been mostly British coins and some Australian coins.
There were no New Zealand Florin coins minted from 1954 to 1960 inclusive. There were no New Zealand Halfcrown coins minted from 1954 to 1960 inclusive.
There were 35,043,0000 New Zealand one cent coins minted for issue in 1974.
New Zealand Post retails current collector coins on behalf of the Reserve Bank of New Zealand. Alternatively, you could visit any reputable coin dealer who should have a selection of past collector coins.
As with most newer coins, New Zealand decimal coins have almost no collector value unless they are Mint Uncirculated or Proof coins. Mint Uncirculated or Proof coins will be issued in some sort of packaging. Uncirculated or Proof New Zealand 10 cent coins to look out for are the 1971, 1974, 1983 and 1984 coins. If in doubt, a reputable coin dealer will be able to advise or give a valuation. NOTE - All New Zealand pre-2006 10 cent coins are no longer legal tender, but they are redeemable for face value at the Reserve Bank of New Zealand.