Imagine my surprise, though, when I walked round one corner and was confronted by the picture below. It's by the 19th Century French artist James Tissot (whom I confess to knowing very little about), and is entitled "London Visitors", being set on the steps of the National Gallery, with two CH pupils acting as guides (one waiting for someone else to talk to, presumably). Naturally, after a few moments of shock, I found the nearest museum guide to tell him all about the school, and that the uniform is virtually unchanged to this day!

Two questions for people:
(1) Does anyone know anything about this painting, and whether there was a reason he chose to include the CH pupils or whether it was just coincidence that they happened to be there?
(2) Has anyone experienced other surprise pictures of CH on their travels?