It VERY closely parallels a composition group known from Tyrian coins starting with Elagabalus–52 coin types total in RPC.
The coins clearly show us that the image was the cult image at Tyre.
Sometimes Marsyas is worked into the composition along with other local symbols like the myrex shell (source of purple die) and the date palm (a chanting pun for Phoenicia and also a local product).
Under Philip I the scene is expanded to contain worshipers or perhaps Tychai (RPC examples).
The last issue with this group is under Trebonianus Gallus (RPC 9.2039).
Liv Mariah Yarrow 