Gallienus Augustus 253-268AD AE Antoninianus Göbl 1002n RIC 343 Joint Reign

18.2x20.9mm, 3.13g
GALLIENVS AVG
Radiate cuirassed bust right, one ribbon
behind, one forward across shoulder
/ LEG IIII FL VI P VI F
Lion (without radiation) springing right.
Göbl 1002n, RSC 500, RIC 343

(Legio IIII Flavia Felix was raised by Vespasian in 70 CE)
http://www.livius.org/le-lh/legio/iiii_flavia_felix.html

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