Did you know that after the changeover to decimal currency in New Zealand in 1967, an estimated 1,000 tonnes of copper reclaimed from the now worthless pennies was melted down for the manufacture of copper oxide. This copper oxide was sold to fertilising companies in Australia, South America and South-East Asia to be used by farmers on their pastures!
Posted by harrisk at July 9, 2011 8:11 PM
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