Severus Alexander, AE of Edessa, Mesopotamia. 

AVT K M ANT ALEXANDROC C, radiate, draped bust right
MHT KOL EDECCHNWN, Tyche, turreted, seated left on rock, 
altar to left. At her feet, river-god swimming. (No stars in field). 

Babelon 75 var. (no stars). 
Contributed by Adil A., Sept. 2011.