The first New Zealand coins were issued in 1933. It is possible that you have a tradesmen's token with a business name and address on it. If so, please provide all of the details.
Such a coin does not exist. The last New Zealand Halfcrown coin was minted in 1965.
Such a coin does not exist. The New Zealand 1 cent coin was first issued in 1967.
Such a coin does not exist. The New Zealand 10 cent coin was first issued in 1967.
The first New Zealand 1 cent coin was issued in 1967.
New Zealand only issued a Twenty Dollar coin in 1995 and 1997.
Such a coin does not exist. There were no New Zealand 1960 Halfcrowns minted.
New Zealand introduced decimal currency in 1967 and have never produced a half cent coin.
Such a coin does not exist. The New Zealand Five Dollar coin is Non-Circulating Legal Tender and was first issued in 1990.
It would depend on the year, denomination and type of coin.
The New Zealand 1 cent coin was only issued as a bronze coin. If you have one that appears to be silver, it is because somebody plated it. Modified coins have no collector value.
New Zealand has never produced a 50 Shilling coin/note.
Such a coin does not exist. The last New Zealand Halfpenny was minted in 1965 and only Britain produced a "Half New Penny" coin.