The Tressis denomination
The tressis was an emergency cast bronze denomination worth three asses issued on a triental or quadrantal standard.

It was issued from 215-213 BC.
An AE Tressis struck 38-37 BC in Achaea
Obverse: M•ANT•IMP•TERT•COS•DESIG•ITER•ET•TER• III•VIR•R•P•C - Conjoined bare heads of Mark Antony and Octavian right, facing draped bust of Octavia left.

Reverse: M•OPPIVS•CAPITO•PRO•PR•PRAEF•CLASS•F•C - Three galleys under sail to right. Γ (Gamma) and Triskeles below.

Diameter: 32 mm
Die Orientation: -
Weight: 25.78 g
Provenance: Privately purchased from Ingemar Wallin (January 2019).
RPC I 1463