New Zealand twenty-cent coin pegged to the British pound, was changed to a decimal dollar at a rate of two dollars to a pound. Therefore, 20 cents was worth a tenth of a pound. The 20-cent coin replaced the florin coin which had been worth two shillings, or a tenth of a pound. Like the florin, the new 20-cent coin was made of cupronickel, 28.58 mm in diameter, 11.31 grams in weight, and had 100% edge milling. The 20-cent coin retained the presence of a kiwi on the reverse of the florin, albeit in a different design. The original obverses of 20-cent coins depicted
Penny (British pre-decimal coin) many merchants and mining companies issued their own copper tokens e.g. the Parys Mining Company on Anglesey issued huge numbers of tokens (although their acceptability was strictly limited). In 1797, the government authorised Matthew Boulton to strike copper pennies and twopences at his Soho Mint in Birmingham. At the time it was believed that the face value of a coin should correspond to the value of the material it was made from, so they had respectively to contain one or two pence worth of copper (for a penny this worked out to be one ounce of copper). This requirement meant