ISLAMIC. The Coinage of Yemen. Rasulids, al-Nāṣir Ṣalāh ad-Dīn Aḥmad, (AH 803-827 / AD 1400-1424), Dirham ND (AH823?), Zabīd mint. Condition: Rare and Very Fine. Weight: 1.85 g. Diameter: 25.5 mm.