Here in Greece when people want go they'll go to a bank and buy British gold pounds (https://en.wikipedia.org/wiki/Sovereign_(British_coin)). I'm not sure there's a limit; you can buy as many as you want.
This is very popular here because gold sovereigns here in greece are traditionally given as presents from close relatives on very important moments like marriage, child birth etc (i.e when a child is born its grandparents will give a gold sovereign to its parents)
(just don't buy new ones, you have to pay 20% VAT on those which is silly)
Ironically the plot of Goldfinger relies on something which no longer exists: capital controls. The evil Auric Goldfinger was trying to circumvent British control of the export of money by hiding gold in car panels.