Alexandreia Troas. semi-autonomous issues. AD 138-268. AE20, 4.22 g. COL TROA, Turreted and draped bust of Tyche right, AV on vexillum behind. CO AV TRO, eagle standing right, wings spread, on forepart of bull right. Mionnet II, 93. SNG von Aulock 7553 var (has CO AV on vexillum). With permission of Numismatik Lanz, Nov. 2003.