Gallienus, AE28 Pentassarion of Serdica, Thrace. 

AVT K GALLIHNOC, radiate, draped, and cuirassed bust left, 
holding spear.
OVLPIAC CERDIKHC, the first with head right, holding amphora 
from which liquid flows, the second with head right, and the 
third with head left, holding amphora from which liquid 
flows. 

Staal 57.1.1; Ruzicka 490.

Courtesy of Mark Staal, Feb. 2010.