Stone horse dismount used by the Duke of Wellington c1803

2015-01-18 15.00.25 I’ve gone past this many times and never really gave a thought as to what it could be but I have discovered that it was used by the Duke of Wellington when he dismounted his horse.Lord Nelson was 5 foot 6 and the Duke was only a little bit taller so I’m guessing that is why he needed a two tier stone platform to be able to dismount his horse.This is the kind of thing that astonishes me about London,How has this managed not to have been taken away……..