Non-decimal currency Non-decimal currency A non-decimal currency is a currency that has sub-units that are a non-decimal fraction of the main unit, i.e. the number of sub-units in a main unit is not a power of 10. Today only two countries in the world use non-decimal currencies. Both of these countries are in Africa. These are Mauritania (1 ouguiya = 5 khoums) and Madagascar (1 ariary = 5 iraimbilanja). However these are only theoretically non-decimal, as in both cases the value of the main unit is so low that the sub-unit is too small to be of any practical use and coins
British currency in the Middle East the Currency Board in Cyprus, one pound sterling issued by the Bank of England had to be deposited by the Government of Cyprus with the Crown Agents in London. In 1955, a decision was made by the British colonial authorities to decimalise the Cyprus pound, and in this they used the system proposed by William Brown, a member of the United Kingdom parliament, who suggested in 1855 that the pound sterling in the United Kingdom should be divided into one-thousand parts, each called a "mil." Although this system was never adopted in the United Kingdom, it was used in several