After decades as government offices, the building finally reverted to its original use earlier this year, after a bit of a hiccup when it was found the hotel company's largest shareholder is...the Libyan government, whose assets are frozen.
Both figures represent London. On the left is the City, a queen in classical garb holding a winged staff in her right hand. She used to hold a torch in her left but it seems to have disappeared. Behind her loom Big Ben and the dome of St Paul's.
On the right is Old Father Thames brandishing a trident and holding his urn, from which the river perpetually springs. A swan swims at his feet. Behind him can be glimpsed the White Tower and a ship.
The underside of Bertie's bay window is decorated with a lively frieze of water babies playing with hippocampi.