20 Pesos Fuertes

Banco de Cuyo operated out of Mendoza, one of several provincial banks that briefly held note-issuing authority in Argentina during the mid-nineteenth century before federal consolidation stripped that right away. The London printing connection was entirely typical for Argentine provincial banks of this period — Bradbury, Wilkinson had a substantial South American client base precisely because domestic printing infrastructure could not yet match the security features demanded of fiduciary currency.

The "Fuertes" designation was not decorative. It specifically distinguished hard-currency-backed notes from the inflated paper monies already circulating elsewhere in the region.