Severus Alexander, AE 18mm of Bostra, Decapolis, Syria. IMP CAES M AVR SEV ALEXANDER AVG, laureate, draped, cuirassed bust right. COLONIA BOSTRA, Marsyas standing right, wine-skin over shoulder, raising right hand. Spijkerman 49; Sear SGI 3380 var (legends). Contributed by Trionfo-Jerusalem, July 2011.