Münzen des Osmanischen Reiches 20 Piaster, AH 1304/5, Abdullah Ibn Mohammed, Omdurman, KM 7.1 (Sudan), kl. Schrötlingsfehler, ss. Los 1224 der 27. Auktion Stephen Album Rare Coins, Santa Rosa, 2017. ss
Coins of the Osman Empire 20 piastre, AH 1304 / 5, Abdullah Ibn Mohammed, Omdurman, KM 7.1 (Sudan), small planchet fault, ss. Lot 1224 the 27. Auction Stephen album Rare Coins, Santa rose, 2017. ss