Troas, Alexandria Troas. Mid-3rd Century AD AE 20 (20.26 mm, 4.92 g, 11 h). COL TROA, turreted and draped bust of Tyche right, vexilla at her shoulder / COL AVG TRO, eagle with spread wings, standing facing on a bucranium. Bellinger T 150, A 490; SNG Von Aulock 7553. EF.