Alexandria, Troas. AE20, semi-autonomous. 138-268. 3.97g. ALEXA TRO, Turreted and draped bust of Tyche right; CO AV on vexillum to left. COL AVG TRO, horse grazing right. SNG von Aulock 7551; Mionnet Supp V, 103 Auktionshaus H. D. Rauch GmbH - Auction 89, Lot 1134, Dec. 2011.