1 Denier / 1⁄13 Mattier - Charles I Seven Years' War

Brunswick-Wolfenbüttel was drawn into the Seven Years' War as a close ally of Prussia — Duke Charles I provided troops to the allied force under Ferdinand of Brunswick, his own kinsman, who commanded the Army of Observation against French forces pushing into Hanover. This tiny copper piece was struck in 1758, the year Ferdinand drove the French back across the Rhine at the Battle of Krefeld. Fractional copper coinage of this type saw heavy use supplying and paying peripheral military logistics, and survivorship in any condition above corroded is genuinely modest.