2 Reales

La Rioja's autonomous coinage existed within a narrow window of Argentine provincial monetary independence, before the national government systematically suppressed regional mints through the 1850s and 1860s. This 1842 issue came from a province whose mint output was intermittent at best, production frequently interrupted by the political turbulence of the Rosas years, when provincial autonomy was nominally preserved but practically constrained by Buenos Aires.

The .875 fineness was not a local innovation — it tracked the old Spanish colonial standard, a deliberate signal of continuity that provincial authorities across the Río de la Plata region used to maintain commercial credibility.