Coin of Phillip the Arab

[Flavivs Aetivs]

I saw this coin of Phillip the Arab, but can't read the inscription (I may enjoy Roman numismatics but can't read a word they say ). It looks like there's a post that says "COH III" in the middle.


[attachment=9507]coin1.jpg[/attachment]

[edit : link was deleted and the image only uploaded]

Part of the reverse is given:
SAECULARES