They're both Seleucid kingdom. Reverses are different, in my opinion. First one is Apollo sitting on omphalos, examining arrow, second is Zeus holding Nike and spear. Second's ruler inscription seems to be ANTIOXOY.
The first one might be https://www.wildwinds.com/coins/greece/seleucia/seleukos_III/SC_922@7d.jpg, based on the head gear of the obverse head and the position of Apollo's legs.
The second one might be from one of the few Antiochus kings, but I'm not sure which one. I think you can search for it in Wildwinds (bearded Zeus on the obverse, Zeus holding Nike and spear on the reverse).