High up on the wall of the Turkish Shop, overlooking the junction of St James's Street, Blackhorse Road and Coppermill Lane these is a large picture of a swan, which looks vaguely like a Banksy from a distance to people who nothing about these things (I bet that's annoying for the artist), except that it is not as humourous, it's removable, and it was done by Katja Rosenberg. It's part of the E17 Art Trail. As clueless tourists, we didn't realise this when my wife and I hurried past it last Saturday to get in on the action.