Early Islamic Graffiti of Wādī al-Khirqa in Northwest Saudi Arabia

Wādī al-Khirqa is situated about 75 km northwest of Tabūk, Saudi Arabia. In 2017, a Saudi–Japanese team started graffiti surveys at the site, within the framework of al-Jawf/Tabūk Archaeological Project led by Prof. Sumio Fujii (Kanazawa University), and completed the third season in 2022. The site yielded 113 early Islamic Arabic graffiti, among which 32 were published in my previous papers. In this paper, 28 unpublished graffiti in good condition are introduced with their textual and orthographic analyses.