1/2 Unit

Obulco — modern Porcuna, in the upper Guadalquivir valley — was one of the most prolific Hispanic mints of the late Republican period, producing coinage in its own Iberian script well into the first century BC. The city's output spans the Social War era through Caesar's Hispanian campaigns, and the mint likely ceased operation around the time of the Caesarian reorganization of Baetica following the Battle of Munda in 45 BC.

The half-unit denomination is the smallest of the Obulco bronze series and shows considerable die variation across the RAH 627–639 range, reflecting extended production over several decades rather than a single issue.