Bronze disc of a procurator Portus Ostiensis

Provenance unknown. In view of the inscription the object must have been in use in Portus.
Date: in the inscription features a freedman of Claudius, so the disc is from his reign or a little later. Diam. 0.066.

On the backside is a nail for attaching the object to something. Between some sort of crown and a branch five lines have been incised:

CLAVDI
OPTATI
AVG(usti) L(iberti)
PROC(uratoris) PORTVS
OSTIE(n)SIS
Of Claudius
Optatus,
freedman of the Emperor,
procurator of Portus
Ostiensis.

Inv. nr. Fr. 2504. Inscription CIL XIV, 163, EDR129739. Photo: Antikensammlung. Antikensammlung info.