2 Colones

Banco Occidental was a regional Salvadoran bank operating out of Santa Ana, the commercial heart of the western coffee belt. By 1926 it was one of a shrinking number of private issuing banks still producing their own notes — the Salvadoran government would consolidate the country's note-issuing authority under the Banco Central de Reserva just a few years later in 1934, effectively ending the era of competitive private issue.

ABNC printed for dozens of Latin American clients simultaneously, and their ledgers from this period show tight scheduling between competing regional commissions. The S-prefix in the Pick reference flags this as a private bank issue, not a government series.