Sultan Mohamed / Uzbeq Khan / al-Adil // Zarb Sarai al-Mahrus saneh 722. Sarai al-Mahrus mint, dated 722 AH (1322 CE). 16mm, 1.39 grams. Sagdeyeva 201.

Sarai al-Mahrus ("Old Sarai") was located somewhere in lower Volga in Russia, though the exact location of that city is uncertain and disputed.

Sultan Mohammed Az-Beg, better known as Uzbeg or Ozbeg (1282-1341, reign 1313-1341), was the longest-reigning khan of the Golden Horde, under whose rule the state reached its zenith. He was succeeded by his son Jani Beg. He was the son of Toghrilcha and grandson of Mengu-Timur, who had been khan of the Golden Horde from 1267-1280.