To simplify the process of coin’s search, the sign standing for Arabic letter ‘ayn (ع) has been omitted in the words/names, for example, ‘al-Mutamid’ stands for ‘al-Mu‘tamid’, likewise ‘al-Abbas’ stands for ‘al-‘Abbas’, ‘Jafar’ is for ‘Ja‘far’ and ‘Abdallah’ for ‘ ‘Abdallah’ etc.
