11 clay tablets, 3 inscribed in possibly alphabetic script - Proto-Canaanite alphabet , 7 bearing only dots, and one uninscribed. The inscribed tablets date to 1450-1200 BC.
See:
- Zeidan A. Kafafi, The Archaeological Context of the Tell Deir ‘Allā Tablets - https://openaccess.leidenuniv.nl/bitstream/handle/1887/15866/08%20ASLU%2019%20Chapter%208.pdf?sequence=14
- William H. Shea, "The Inscribed Tablets From Tell Deir `Alla", Andrews University Seminary Studies, vol. 27, 1989, pp. 21-37, 97-119.-http://digitalcommons.andrews.edu/cgi/viewcontent.cgi?article=1916&context=auss
- http://www.bible.ca/archeology/bible-archeology-balaam-son-of-beor-inscription-tell-deir-alla-succoth-1400-750bc.htm