 Coins of the pound tend to follow the size, weight, and composition of their British counterparts.The main coins in usage were the halfpenny (d), penny (1d), threepence (3d), sixpence (6d), shilling (1s), florin (2s), and halfcrown (2s 6d).Decimalisation of the New Zealand currency occurred on 10 July 1967, when the New Zealand pound was replaced by the New Zealand dollar at a rate of one pound to two dollars (10 shillings to a dollar).