One of the many nice things about the river around Teddington Lock is that you can often see industrial boats there, that is boats with jobs to do other than carrying people for pleasure. Boats with functions and designed for those functions and so have interesting shapes and interesting things on board.
The are remains of a name on the side of this one that say something like "Marphy Engineers", with their old 01 telephone number, but wear, sun and water have made it barely readable.