1763 Treaty of Hubertusburg Medal. Silver. 44.6 mm. 21.8 grams. By Leonhard Oexlein. Betts-446, Olding-931. Betts-446. AU-58 (PCGS).This is an original and attractive piece with dominant silver-lilac patina and faint olive highlights over the rims and devices. As the Seven Years War (1756 to 1763) drew to an end, the Treaty of Paris closed the tensions that defined the American theater of conflict, while the Treaty of Hubertusburg wrapped up loose ends among the European combatants soon thereafter.