Æ20 - Valerian and Gallienus ϹΑΜΙΩΝ

Samos issued bronze coinage under both Valerian and Gallienus during their joint reign, a relatively brief window before Valerian's capture by the Sasanian king Shapur I at the Battle of Edessa in 260 — the only time a reigning Roman emperor was taken prisoner in the field. The Samian civic mint, operating within the Milesian conventus, produced joint-reign types that ceased abruptly with that catastrophe.

X#61300 is not a standard RPC reference, suggesting this piece may remain incompletely catalogued in the major corpora.