Lot 1689 SUDAN: Muhammad Ahmad al-Mahdi， 1881-1885， AR 20 piastres 4023.36g41， AH1302 year 5， KM-2， struck at Omdurman， minor weakness of strike， Fine to VF. Only crown issue of the 39Mahdi39 and rare. Struck in the year of the fall of Khartoum and the Mahdi39s unexpected death six months later.
