Severus Alexander, AE24 of Edessa, Mesopotamia.

M A ALXANDER CEBA (sic), laureate, draped and cuirassed bust 
right, seen from the back.
MA K AVR EDECC, Tyche draped and turreted, seated left on 
a pile of rocks, holding branch in right hand, over an altar 
in the left field; the river god swimming left below.

SNG Cop 215 var (obv. legend); Babelon 64 var (ditto).
Ex Lanz collection.
contributed by Masis Panos, June 2013.