Umm Darman, dated 1310, regnal year 8 (2), with plain and wreath borders (KM.12,13), the former very good, the latter, extremely fine for issue, thus very rare (2)" /> Abdullah bin Mohammed "the Khalifa", 10-piastres (2), both struck at <I>Umm Darman</I>, dated 1310, regnal year 8 (2), with plain and wreath borders (KM.12,13), <I>the former very good, the latter, extremely fine for issue, thus very rare</I> (2) | Christie's