10 Décimos

Banco Nacional was a short-lived institution, and a 10 Décimos denomination from 1826 places this note in the earliest years of post-independence Latin American banking — a period when the decimal system itself was still being imposed on populations accustomed to the old Spanish colonial reales. The décimo as a unit was an explicit modernizing choice, part of broader republican currency reforms meant to break from colonial monetary conventions.

PS# prefixes in Pick indicate private or semi-official bank issues rather than central government emissions. Without confirmed surviving examples on record, condition survivorship for notes of this age and origin is genuinely unknown.