Note the cover on top of the dynamo. It's a Peugeot women's bike, so they added a cover to make sure skirts don't get trapped between wheel and dynamo roller.
15 minutes of genius: Jacques Tati's The School for Postmen (L'Ecole des Facteurs) via theguardian: http://www.theguardian.com/film/video/2014/aug/06/jacques-tati-ecole-des-facteurs-school-for-postmen