Gallienus, AE antoninianus, Siscia mint. Sole reign. AD 262.

GALLIENVS AVG, radiate, cuirassed bust right.
SISCIA AVG, Siscia seated left on the bank of the river Savus, 
in which a river nymph is swimming left.

RIC V-1 (S), Siscia 582; Sear 10361.
Very rare (R3).

With permission of cngcoins.com, 2002.