OTTOMAN TUNIS Mahmud II (1223-1255ah / 1808-1839ce) Lot of 4 coins: riyal Bi Fen 234f, KM 90 all vf-xf a. 1240ah (1824ce) b. 1241ah (1825ce) c. 1243ah (1827ce) d. 1248ah (1832ce)