5 Sucres

The Banco Central del Ecuador was itself newly created when this series began — established by the Kemmerer Mission in 1927, the same U.S.-led monetary reform effort that restructured central banking across much of South America during that decade. The bank absorbed the note-issuing functions of several private commercial banks that had previously flooded Ecuador with competing paper, and this 5 Sucres was among the first issues to carry the new institution's name.

ABNC plates from this period were frequently reused or lightly modified across successive date spans, so the ten-year window covered by P#84 reflects incremental authorization rather than a single print run.