The image is from the journal article "Roman and Early Muslim Coinage in North Africa" by Michael L. Bates, and shows Latin coin inscriptions with Islamic phrases.
Michael L Bates
CC BY-SA 4.0
<a rel="nofollow" class="external free" href="https://www.academia.edu/760238/Roman_and_Early_Muslim_Coinage_in_North_Africa">https://www.academia.edu/760238/Roman_and_Early_Muslim_Coinage_in_North_Africa</a>