Metrication in the United Kingdom that reported in 1818, and again in Parliament by Sir John Wrottesley in 1824. Another Royal Commission was set up 1838 by Chancellor of the Exchequer Thomas Spring Rice and it reported in 1841 that decimal coinage was required first. A third commission in 1853 advocated decimal coinage in the form £1 : 10 florins : 100 cents: 1000 mils. The first florins (one tenth of a pound sterling) were struck in 1849 as silver coins weighing and having a diameter of . An early supporter of the "Decimal Association" was the mathematician Augustus de Morgan whose articles supporting the
Twopence (British pre-decimal coin) Twopence (British pre-decimal coin) The pre-decimal twopence (2d) was a coin worth one one-hundred-and-twentieth of a pound sterling, or two pence. It was a short-lived denomination, only being minted in 1797 by Matthew Boulton's Soho Mint. Before Decimal Day in 1971, two hundred and forty pence equaled one pound sterling. Twelve pence made a shilling, and twenty shillings made a pound. Values less than a pound were usually written in terms of shillings and pence, e.g. forty-two pence would be three shillings and six pence (3/6), pronounced "three and six". Values of less than a shilling were simply written in