ISLAMIC. The Coinage of Yemen. Rasulids, al-Nāṣir Ṣalāh ad-Dīn Aḥmad, (AH 803-827 / AD 1400-1424), Dirham AH818, Zabīd mint. Album 1111. Condition: Very fine. Weight: 1.73g. Diameter: 29 mm.