The other figure that's gone missing is of Sir John Houblon, the first governor of the Bank of England. He was the grandson of a Huguenot refugee.
More top news
The mother of a former altar boy who tried to blow up a train insisted he was 'a big softie' who didn't want to hurt anyone.
Its current five year licence comes to an end next Tuesday.
Extra armed police will guard major sporting events in London this weekend after the military was drafted in to protect key locations.