Back of the 50 Swiss Francs banknote, part of series 2 of Swiss banknotes. See <a rel="nofollow" class="external free" href="http://www.snb.ch/en/iabout/cash/history/id/cash_history_serie2">http://www.snb.ch/en/iabout/cash/history/id/cash_history_serie2</a> for more information.
<a href="//commons.wikimedia.org/wiki/User:Schutz" title="User:Schutz">user:Schutz</a>
digital image kindly provided by the Swiss National Bank.