ISLAMIC. The Coinage of Yemen. Rasulids, al-Nāṣir Ṣalāh ad-Dīn Aḥmad, (AH 803-827 / AD 1400-1424), Dirham ND, Muhjam mint. Dr. Busso Peus Nachfolger, Auction 421 (2017), no. 1638. Condition: Very fine. Weight: 1.77g. Diameter: 26.5 mm.