Halévy's copy. As far as the chronology of the text is concerned, Avanzini 1995 suggests the last centuries BC, when both the title "mlk Ns²n" and the typical Minaic suffixes in -h (bynht-s¹m) are possible.
Avanzini, Alessandra 1995. As-Sawdāʾ. Inventaire des inscriptions sudarabiques. 4. Paris: de Boccard / Rome: Herder. [Académie des Inscriptions et Belles-lettres; Istituto italiano per l'Africa e l'Oriente]