The word "dirhem" comes from drachma (δραχμή), the Greek denomination which circulated in the Levant and beyond both before and after the Arab conquest.
Near the end of the 7th century the coin became an Islamic currency bearing the name of the sovereign and a religious verse

Reverse: Margin: محمد رسول الله ارسله بالهدى و دين الحق ليظهره على الدين كله ولو كره المشركون Center: محمد رسول الله صلى الله عليه و سلم الخليفة المهدى يحيى
Die Orientation: 2 H
Weight: 3 g

Reverse: Margin: محمد رسول الله ارسله بالهدى و دين الحق ليظهره على الدين كله ولو كره المشركون Center: محمد رسول الله بخ بخ
Die Orientation: 6 H
Weight: 2.83 g
Margin: "In The Name of God. This dirham was struck in Madinat al-Salam in the year five and fifty and one hundred (155)"
Center: There is no diety except |
(the one) God alone |
He has no equal
Translation of reverse:
Margin: Muhammad is the messenger of God. He sent him with guidance and the true religion to reveal it to all religions even if the polytheists abhor it.
Center: Muhammad
The Messanger
Of God
(Bakh Bakh)
.jpg)
Reverse: Margin: محمد رسول الله ارسله بالهدى و دين الحق ليظهره على الدين كله ولو كره المشركون Center: محمد رسول الله بخ
Die Orientation: 3 H
Weight: 2.85 g
Year 148 AH=765-766 AD
Translations:
Obverse margin: "In The Name of God. This dirham was struck in Madinat-al-Salam in the year eight and forty and one hundred"
Obverse center: "There is no deity except (the one) God, he has no equal"
Reverse margin: "Muhammad is the messenger of God. He sent him with guidance and the true religion to reveal it to all religions even if the polytheists abhor it."
Reverse center: "Muhammad The Messenger Of God (Bakh)"

Reverse:
Die Orientation: -
Weight: 2.9 g
.jpg)
Reverse: Margin: محمد رسول الله ارسله بالهدى و دين الحق ليظهره على الدين كله ولو كره المشركون Center: الله احد الله الصمد لم يلد و لم يولد و لم يكن له كفؤا أحد
Die Orientation: 12 H
Weight: 2.76 g
Translations:
Obverse Margin: "In the name of God. This Dirham was struck in Wasit in the year ninety six"
Center: "There is no deity except | (the one) God alone |He has no equal"
Reverse Margin: "Muhammad is the messenger of God. He sent him with guidance and the true religion to reveal it to all religions even if the polytheists abhor it."
Center: "God is One God | The eternal and indivisible, who has not begotten, and | has not been begotten and never is there | His equal"

Reverse: Margin: محمد رسول الله ارسله بالهدى و دين الحق ليظهره على الدين كله ولو كره المشركون Center: محمد رسول الله مما امر به الامير الامين محمد بن امير المؤمنين جعفر
Die Orientation: 7 H
Weight: 2.96 g

Reverse: Four line legend citing Saladin as overlord
Die Orientation: -
Weight: 14.17 g

Reverse: Islamic legend in five lines within circular border
Die Orientation: -
Weight: 12.8 g

Reverse: Name and titles of Abbasid caliph in five lines; above, Artuqid tamgha flanked by stars; date in outer margins
Die Orientation: 10 H
Weight: 6.22 g
.jpg)
Reverse:
Die Orientation: -
Weight: -