in third place there was a tie between the 10,000-colones note of Costa Rica, which shows the abolition of the leader of the army, rainforest and flora, and the Bank of England's 50-pound banknote ...

the 20-pound note artist J.M.W. Turner and the 50-pound note Alan Turing, the computer pioneer. Brits have only had one monarch in their pockets for their whole lives, but now they can carry two.