AFGHANISTAN, Durrani Shahs. Ahmad Shah. AH 1160-1186 / AD 1747-1773. AR Rupee (24mm, 11.39 g, 1h). Dar al-Khalifat Shahjahanabad mint. Dually dated AH 1170 and RY 11 (June-early September AD 1757). Persian couplet / Mint formula and RY date. Album 3092; KM 763. VF, toned.