New Zealand Halfpennies were issued in most years from 1940 until 1965. Decimal currency was introduced in 1967.
Depending on their condition and any peculiarities, a New Zealand Penny could be worth anything from $2 to $450 NZD.
A complete set of New Zealand Pennies from 1940 to 1965 in average condition might get $60 NZD.
A New Zealand 1941 bronze Halfpenny (George VI), uncirculated and in absolute mint condition could fetch up to $150 NZD. If it has been circulated but still in good condition, it might fetch anything from $1 to $20 NZD.
There were 960,000 minted.
A reputable coin dealer will be able to give a more accurate valuation.
With the possible exception of traders tokens (with the traders business name on them), there were no "New Zealand" Pennies minted prior to 1940.
Any Pennies circulating in New Zealand prior to 1940 would have been mostly British Pennies and some Australian Pennies.
With the possible exception of traders tokens (with the traders business name on them), there were no "New Zealand" Halfpennies minted prior to 1940.
Any Halfpennies circulating in New Zealand prior to 1940 would have been mostly British Halfpennies and some Australian Halfpennies.
There was no 1948 New Zealand Halfpenny minted.
The last New Zealand Halfpenny was minted in 1965. New Zealand converted to decimal currency in 1967.
The last New Zealand Halfpenny was minted in 1965. New Zealand converted to decimal currency in 1967.
There were no 1943 New Zealand Halfpennies minted.
New Zealand has never issued a silver Halfpenny. Somebody has possibly silver plated it. Modified coins have no collector value.
The first New Zealand Penny and Halfpenny was issued in 1940.
You will find most the answers to New Zealand coin questions already on WikiAnswers if you use the format - What is the value of a 1954 New Zealand Halfpenny etc.
Nothing. Whatever value the coin had as a collectible vanished when the coin was modified.
Please check your coin again and post a new, separate question. New Zealand's first halfpennies were minted in 1940.
Such a coin does not exist. The last New Zealand Halfpenny was minted in 1965 and only Britain produced a "Half New Penny" coin.
The New Zealand Penny and Halfpenny were made from bronze consisting of 97% copper, 2.5% zinc and 0.5% tin.
The New Zealand Halfpenny issued from 1940 to 1965 inclusive, featured a hei tiki design on the reverse. The designer was L C Mitchell.