Watch List notes:

COMMEMORATIVE MEDALS, WORLD MEDALS, Russia, Alexander I, Count M Platov, the Ataman of the Don Cossacks, Bronze Medal, by Joseph Mainèrt(?), uniformed bust left, HETMAN PLATOFF, rev ACRI MILITIA VEXAVIT GALLOS EQUES METUENDUS HASTA, 48mm (Diakov -) About extremely fine and very rare.
Count Matvei Ivanovich Platoff, Ataman of the Don Cossacks and a Russian commander in the Napoleonic wars

Estimate: £600-800