ISLAMIC, Time of the Rashidun. Yazdigerd type. AH 31-41 / AD 651-661. Drachm (Silver, 29 mm, 3.07 g, 3 h), Arab-Sasanian type, SK (?) (Sakestān/Sijistān), YE 20 (frozen date) = 651. Draped bust resembling Yazdgird III to right, wearing elaborate crown; behind head, ‘GDE ʾp̄zwt’ (‘[may his] glory increase’ in Pahlavi); before head, ‘yzdkrt’ (‘Yazdgird’ in Pahlavi); in outer margin, ‘bism Allāh’ (‘In the name of Allah’ in Arabic). Rev. Fire altar, flanked by two attendants; to left, date in Pahlavi; to right, SK(?) (abbreviation for the name of the mint in Pahlavi). Album 1. Rare. Deposits and a flan crack, otherwise, very fine.