No. No New Zealand general circulation decimal coin has ever contained any silver.
The last New Zealand general circulation coins to contain any silver at all were last issued in 1946.
No general circulation New Zealand decimal coin contains any silver. New Zealand 50 cent coins were made from a copper nickel alloy from 1967 until 2006.
The New Zealand 50 cent coin is round. From 1967 to 2006, the New Zealand 50 cent coin, has a silver appearance, weighs 13.61 grams and was 31.73 mm in diameter, is 2.33 mm thick, has an inerrupted milled edge and is made from 75% copper and 25% nickel. From 2006 to present, the New Zealand 50 cent coin, has a silver appearance, weighs 5 grams and is 24.75 mm in diameter, is 1.7 mm thick, has a plain edge and is made from nickel plated steel.
Zero. No New Zealand general circulation coin has had any silver content since 1946. The only exception to this is the 1949 and 1953 Crown (Five Shilling) coins. From 1947 to 2006, all New Zealand general circulation "silver" coins were made from a copper-nickel alloy. From 2006 onwards, all New Zealand general circulation "silver" coins were made from nickel plated steel.
No, none of the 3 cent pieces with the Liberty Head were silver, all are made of nickel.
No silver one cent coins have ever been made by the US, but it may be a silver 3 cent piece, they were made from 1851 to 1873. Look at the coin again and post new question
The current New Zealand 50 cent coins issued since July 2006, are made from nickel plated steel. The older and now withdrawn 50 cent coins issued from 1967 to 2005 were made from a copper-nickel alloy. No New Zealand general circulation coin contains any precious metal.
The US has never made a one cent silver coin. It's likely been plated as a novelty coin or to be used as jewelry. It has no collectible value.
A silver Indian Head one cent coin from 1862 does not exist. The coin was made of bronze, not silver, and featured a depiction of Liberty wearing a Native American headdress on the obverse side, and a wreath on the reverse side.
I am not sure what you mean by "delaminated". The New Zealand 5 cent coin was made from a copper-nickel alloy and was not plated with anything. NOTE - All New Zealand 5 cent coins are no longer legal tender, but they are redeemable for face value at the Reserve Bank of New Zealand.
The original Australian 1966 50 cent coin was made from 80% silver, and after the steep increases in the price of silver in the 1960's, the silver in the coin was worth more than the coin. It took only three 50 cent coins to make one ounce of silver. The coin was no longer cost effective to produce. The 1967 issue was halted and the coins melted down. The next, and all subsequent Australian 50 cent coins were dodecagonal and made from cupro-nickel. The change in shape was to make them more distinguishable from the slightly smaller 20 cent coin.
The U.S. has never made a silver one cent coin of any type.
The US has never made a one cent coin from silver. Zinc coated steel, not silver.