PRUSSIA: Friedrich II, the Great, 1740-1786, AR 6 kreuzer, 1756-C, KM-A283, a lovely mint state example! PCGS graded MS63. Although the 'C' mintmark normally designated Cleves, these coins were struck in Berlin, Aurich, Magdeburg and Königsberg, as well as Cleves.
Estimate: 75-100 USD