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
Virginia pound Virginia pound The pound was the currency of Virginia until 1793. Initially, the British pound sterling circulated along with foreign currencies, supplemented from 1755 by local paper money. Although these notes were denominated in pounds, shillings and pence, they were worth less than sterling, usually discounted so 1 Virginia shilling was equal to 9 British pence, while 1 British shilling was equal to 12 British pence. In British pounds, shillings and pence (£sd), duodecimal coinage (12d (pence) = 1s (shilling), 20s = £1 (pound), 21s = 1 guinea), which was in use in the UK until the adoption of decimal