He is a Prussian, a politician and a bald man: Otto von Bismarck, Germany's first Chancellor. There are plenty of portraits of him - in oil, austere and monumental, as a black and white photograph with a fixed gaze and iron posture. "Bismarck with Herring" is the first comedic portrait of the great statesman: an equally irreverent and affectionate look at the "great Otto". Compact, pointed and surprisingly topical.