I’m pretty sure these are Nabataean prutah featuring Aretas IV and Shaqilath but would like some confirmation. There seems to be a few types listed on Numista but what is the difference between https://en.numista.com/catalogue/pieces69784.html, https://en.numista.com/catalogue/pieces76190.html and https://en.numista.com/catalogue/pieces69157.html? (#2 is probably https://en.numista.com/catalogue/pieces86552.html?)
#1:
diameter: 14mm
thickness: 2mm
weight: 2.52g
#2:
diameter: 13mm
thickness: 2mm
weight: 1.93g
#3:
diameter: 16mm
thickness: 2mm
weight: 3.78g