Time of Vespasian, 69-79 AD. AE20 (4.52g). Magistrate T. Fl. Eisigonos. Wreathed bust of Dionysos right / Zeus Lydios with eagle and scepter; before, monogram. gVF.
This Omega-A-L monogram is unpublished. The same monogram was on a G&M coin 191, lot 1810. This slightly clearer example of the monogram can be seen on wildwinds