Troas, Alexandria Troas. Pseudo-Autonomous. Time of Valerian I - Gallienus, A.D. 253-268. AE 22 (22.1 mm, 6.54 g, 6 h). AV CO TRO (or similar), turreted and draped bust of Tyche right; behind her, vexillum inscribed CO AV / COL AV TRO, eagle flying right, holding forepart of a bull in its claws. Bellinger A490; cf. SNG Copenhagen 117; cf. SNG Munich 61-3. Fine, rough surfaces.