Æ, diameter 25.2mm. Weight 10.62 gram. AVK M ANT ΓOPΔIANOC  His laureate draped bust right.  R. METPO KAIC BN Mount Argaeus on altar inscribed ENTX, ETΔ in ex (= year 4 = 241AD).  BMC 345.  Scratched in obv. field, otherwise strong Good Fine 

The information with this coin from the Albert Reeves collection says that it was bought on 1 Dec 1982 from I Johnson.