10 Centavos Fuertes

Banco de Cuyo was one of several provincial Argentine banks granted note-issuing privileges under the 1854 banking law that allowed individual provinces to charter their own institutions. The bank operated out of Mendoza and served the cuyo region's wine and agricultural economy. "Fuertes" in the denomination signals hard-currency backing — a deliberate reassurance to holders at a time when Argentine paper money was routinely discounted against coin, and the distinction between "fuertes" and "moneda corriente" carried real purchasing-power consequences.

PS prefix in the Pick system denotes a private or provincial issuer rather than a national bank, and the 1637 reference places this within a sparse series. Surviving examples are rare; most provincial Argentine notes of this period were redeemed or destroyed when the Banco Nacional absorbed regional issuing authority in the 1870s.