Tetrachalkon - Mithridates VI Phanagoria

Historical Context: This silver Tetrachalkon, struck 107-100 BC in Phanagoria, reflects the Bosporan Kingdom's strategic importance under Mithridates VI Eupator. As King of Pontus, Mithridates extended his suzerainty over Bosporan territories, securing vital resources and a strategic position against Rome. This issue dates to his early consolidation of power, predating the major Mithridatic Wars, signifying Phanagoria's economic integration and political alignment with his empire-building agenda.

Artistry: The artistic style aligns with the Hellenistic tradition prevalent in Pontic and Bosporan coinage under Mithridates VI. Engravers remain anonymous, but the quality reflects Attic and Pergamene influences. The obverse typically features a powerful, idealized portrait of Mithridates VI, often with a diadem and flowing hair, embodying heroic characteristics. The reverse commonly displays symbols of royal authority or local significance, such as a majestic stag, frequently associated with Mithridates, rendered with careful attention to detail.

Technical/Grading: This silver coin, weighing 6.21 grams and measuring 21.5 millimeters, represents a substantial denomination for the period, despite its 'Tetrachalkon' designation. For optimal grading, examine the strike quality, particularly the high-points of the obverse portrait—the diadem, hair, nose, and chin—and the details of the reverse animal, such as antlers. A well-centered strike, strong relief, and minimal flan imperfections are indicative of a superior example. Silver purity and preservation of surface details are also critical factors.