France - 20 Francs 1856, Gold, NAPOLÉON III 1852–1870 Strasbourg mint. Head right. Rev. value and date within wreath.Gad. 1061; Fr. 573; KM. 781.1.The Battle of Sedan, marked a disastrous loss for the French in the Franco-Prussian war, leading to the capture of Napoleon III and a large number of his troops. The dissatisfaction of the public led many to issue or engrave coins referencing the loss as a form of political satire. Common are the copper and brass satirical issues. Regular issues were either engraved or countermarked. Less common are gold issues with the countermark.6.38 g. Countermarked 'SEDAN' on obverse Very fine/Very fine +