Here is one that is very similar to yours but mine has the mark of the sixth officina (workshop) at the Rome mint, VI, in the right field. You may read about these officina marks in this thread. Gallienus, AD 253-268. Roman billon antoninianus, 3.46 g, 21.4 mm, 6 h. Rome, AD 261-262. Obv: GALLIENVS AVG, radiate and cuirassed bust, right. Rev: AEQVITAS AVG, Aequitas, draped, standing left, holding scales in right hand and cornucopiae in left hand; VI in right field. Refs: RIC 159 var.; Göbl 500q1; RCV 10167; Hunter 8.
That's the G in AVG. I don't think yours has an officina number, which is a known variety of the coin.
That's the G in AVG, which is short for AVGVSTI. The reverse legend goes clockwise around the rim and reads AEQVITAS AVG. "Aequitas augusti" means "the fairness of the emperor."
...I still need the version from Europe '72. If you've got better ones, I'm needing those, too. ...'Sometimes the light's all shinin' on me; Other times I can barely see....'
The year 93 would be Domitian, the last of the 'Twelve Caesars.' An arbitrary number, since they're reducible to the one primary source from Seutonius. But, writing around the time of Hadrian (117-138), he ended it there. Maybe, er, partly from political motivation.
The emperor Gallienus, who appears on the obverse of the coin. Not on my coin; on the OP coin, maybe.
Yeah, that's what I meant. Now it's looking like you were attempting to continue an earlier part of the thread, going back to when I was snoring in place. Sorry.