20 Pesos Fuertes

Banco de San Juan was one of several provincial Argentine banks that issued their own paper currency in the mid-nineteenth century, operating under provincial charter before federal monetary consolidation gradually extinguished their note-issuing rights. The "18__" date format — printed with the century and decade fixed, the final digits left blank — indicates the bank held a supply of unissued notes, completing dates by hand as required rather than ordering fresh printings for each year.

PS1883 is sparsely documented in the Pick Specialized catalog, which suggests surviving examples are genuinely uncommon. Provincial San Juan issues of this period rarely appear at auction.