Alexandreia, Troas, AE25, civic issue. Time of Gallienus. Ca. AD 253-268.

COL ALEX TRO, Turreted and draped bust of Tyche right; 
vexillum inscribed CO-AV in two lines behind head.
COL AVG TROA, Marsyas standing right on pedestal, wine-skin 
over his shoulder, right hand raised. 

Bellinger 497 var (with CO ALEX TRO on obv.); SNG Cop 103 var (ditto); SNG von Aulock 1463 var (ditto). 
Rare. Poss. unpublished with COL on the obverse.

With permission of agoraauctions.com, auction 3, lot 80.