Commuters and visitors entering or exiting London’s Southwark Tube Station might catch a glimpse of this rather unusual piece of public art. Adding to their justifiable confusion is that this metallic dog with its head in a bowl has a connection to one of Victorian England’s greatest writers. Carefully crossing the road for further inspection, one will find a plaque on the ground bearing the words of Charles Dickens: “My usual way home was over Blackfriars Bridge, and down that turning in the Blackfriars Road which has Rowland Hill’s chapel…