Anonymous type, dated to 728 AH (1327). 30mm, 8.00 grams. Mint of Bukhara. cf.Zeno #14407; Album 1992.

Very large piece, rare.

Tarmashirin (r. 1326–1334) was a ruler of the Chaghataid Khanate, a Mongol successor state in Central Asia descended from Chagatai, the second son of Genghis Khan. Unlike many of his predecessors, Tarmashirin converted to Islam and actively promoted the religion within his realm, aligning himself more closely with the settled Muslim populations of Transoxiana. He reportedly adopted the Muslim name Ala al-Din and supported Islamic institutions, which marked a significant shift from the traditionally steppe-based, nomadic Mongol political culture. His policies, including closer ties with the Islamic world and a more sedentary style of rule, caused tension among the nomadic Mongol aristocracy, who resented the departure from customary law (Yassa) and steppe traditions. Opposition eventually led to his overthrow and execution in 1334, after which the khanate entered a period of instability.