Watch List notes:

John Churchill, Duke of Marlborough (1650-1722), a circular gilt-metal uniface roundel, perhaps a shoulder badge for his household livery at Blenheim Palace, armoured bust three-quarters l., with lace cravat and full wig, wearing Garter Collar and Badge and smaller Star of Order, IOH. D.G. S. R. I. PR. D. MARL. EXERC. ANGL. C. G., [John, by the Grace of God, Prince of the Holy Roman Empire, Duke of Marlborough, Captain-General of the English Army], civic wreath border and lightly crimped edge, 110.5mm., pierced at compass points, much as made, very fine
The exact legend appears on a rare variety of George Hautsch's medal for the Battle of Blenheim (MI.257/51)
(300-500 GBP)