The symbol for the UK's currency– Pounds (Sterling)—NOT AN F, but is derived from the capital letter L, from the Latin word, libra, meaning pound, which is also where the abreviation ‘lb.’(‹L›i‹B›ra) comes from. Now £1=100p(pence), however, before 1971, £1 = 20s.(shillings) 1s. = 12d.(d.=old abbreaviation of pence), & (for those who don't like math) £1=240d..
Clerk: That will be £15.21.