Watch List notes:

Troas, Alexandria Troas. Gallienus. A.D. 253-268. AE 21 (21.1 mm, 4.03 g, 11 h). IMP LICIN GALLIENVS, Marsyas standing right, on pedestal, right hand raised and holding wine-skin over his shoulder / COL AVG TROAD, Marsyas standing right, on pedestal, right hand raised and holding wine-skin over his shoulder. Bellinger A460; cf. SNG München 139; SNG von Aulock -. VF. Very Rare. 

Ex George Spradling collection. 

Another example of this rare type, in EF, sold for $750 in the 2002 New York Sale.