2 Pesos

San Luis is one of several Argentine provinces that issued its own currency during the catastrophic 2001–2002 federal collapse, when the convertibility peg broke and the national government froze bank deposits under the corralito. These provincial notes — generically called "cuasi-monedas" — were a fiscal stopgap, used to pay provincial employees and suppliers when hard pesos were unavailable. San Luis's series was among the more professionally produced, printed by Ciccone Calcográfica, the Buenos Aires firm responsible for much of Argentina's own federal note production during the same period.

The PS# designation without a number suggests this series hasn't been formally catalogued in the Pick Specialized listings — not unusual for cuasi-monedas, which remain inconsistently documented despite their historical weight.