Volusian AE24 of Tyre, Phoenicia. AD 251-253. 9.08 g. 

IMP C G VIB VOLVSIANVS AVG, laureate, draped and cuirassed bust right.
COL TYRO M(ETRO), Harpokrates standing left by altar, finger to lips, holding cornucopiae, murex shell at lower right.

Lampinen 1 in CNR Vol. 17. RPC IX 2045 var (bust type).