il sesterzio potrebbe essere questo:
https://dl.dropboxusercontent.com/u/11761319/vesta%202.jpg
ULIA MAMAEA, mother of Severus Alexander. Augusta, 222-235 AD. Æ Sestertius (29mm - 22.92 g). Rome mint. Struck 226 AD. IVLIA MAMAEA AVGVSTA, diademed and draped bust right / VESTA, S_C across fields, Vesta standing left, holding palladium in right hand, scepter in left. RIC IV 708 (Severus); BMCRE 389 (Severus). VF, glossy brown patina, minor roughness behind portrait.