I have a worn specimen from the same dies, ex
Agora E40, 2015, 161. Plus two others from the same
obv. die, but with different
rev. types:
COS III Nude
Mars advancing r., and
COS III, Aequitas/Moneta standing l.
Thunderbolt on
cuirass strap appears on some of Hadrian's bronze coins, as you recognized a year or two ago and showed us on
Forvm. But that decoration has never been observed on
his denarii or
aurei, as far as I know. Here you have recognized a simpler decoration, a row of dots, which are also visible faintly on the best of my three specimens from the die.
You mean
Hortator on curved
prow not stern, right? That figure on bow looks more like a fighting
Minerva than the director of the rowers. I
had not really noticed this figure before!