10 Pesos

San Luis was one of several Argentine interior provinces that issued its own paper currency during the turbulent monetary fragmentation of the nineteenth century, when provincial governments routinely filled the void left by the absence of a functioning national currency system. Provincial notes from San Luis are among the least documented in standard references — the PS# designation without a catalog number typically indicates a note that has surfaced outside established collections, unattributed or incompletely verified against known series.

Treat provenance documentation for this piece with particular care before any attribution is finalized.