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
Halfpenny (British pre-decimal coin) of the Golden Hind appeared. Like all British coinage, it bore the portrait of the monarch on the obverse. "Halfpenny" was colloquially written "ha’penny", and "d" was spoken as "a penny ha’penny" or "three ha'pence" . Before Decimal Day in 1971 there were 240 pence in 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. 42 pence would be three shillings and six pence (3/6), pronounced "three and six", whereas 3 shillings even would be "3s" or, on a sign