The 1806 Battle of Jena, War of the Fourth Coalition, Early 19th Century Snuff Box.The Napoleonic Wars and the 1806 Battle of Jena, Early 19th Century Lacquered Papier Mache Snuff Box. The twin battles of Jena and Auerstedt were fought on 14th October 1806, near the river Saale in today's Germany. The forces of Napoleon Bonaparte fought with the army of Fredick William III of Prussia. The Prussian army was defeated and the Kingdom of Prussia came under French control until 1813. In fair to good condition with minor nibbles around