Antiochia ad Orontem in Syria, 4-3 BC., Augustus, Dupondius, RPC 4255.

Antiochia ad Orontem in Syria, Augustus, dated year 28 of the Actian Era = 4-3 BC.,
Æ 26 / Dupondius (ø 24,5-27,5 mm / 15,58 g), bronze, axes about medal alignment ↑↑ (ca. 20°),
Obv.: KA[I]ΣAP ΣEBAΣTΩ - [A]PXIEPEI , laureate head of Augustus r.
Rev.: ARXIE / PA[TI]KON / ANTIOXEIΣ / HK (date HK = year 28 of the Actian Era = 4-3 BC) , all in a wreath of an archiereus.
RPC I, 4255 ; Butcher 51 ; BMC 138-9.

"The people of Antioch (dedicate) to Caesar Augustus, priest at Antioch, the appropriate archieretic wreath." - Refers to the acception of the title archiereus by Augustus. Obv. and rev. legends should be seen together:
KAISARI SEBASTW ARCHIEREI ARXIERATIKON ANTIOXEIS
ANTIOXEIS = subject of the sentence = "the people of Antiochia"
KAICARI SEBASTW ARCHIEREI = dative object of the sentence = "to Caesar Augustus, the Archiereus" (added: "dedicate")
ARXIERATIKON (added STEPHANON) = accusative object of the sentence = "the archieratic (wreath)"

The Actian era is counted from the battle of Actium.