| Province | Thrace |
| City | Byzantium |
| Size (mm) | 23 |
| Weight (g) | 7.48 |
| Die Axis | 180 |
| Tariff | - |
| Governor | - |
| Ob. Leg. | M OΠE ΔIAΔVMENIANOC |
| Ob. Desc. | Bare headed and cuirassed bust right – seen from behind |
| Meaning | Marcus Opellius Diadumenianus |
| Rev. Leg. | BVZANT[IΩN) | Rev. Desc. | Galley under sailing left. | Meaning | (Coin) of the people of Byzantium – Honouring our maritime traditions | References; | CNG Sale 69 Lot 932 (illustrated with permission); BMC Thrace 90; Varbanov 1443; Sear 2987 citing BMC 3.104,90 | Notes: |