20 Sucres

The Banco Central del Ecuador began issuing notes through the American Bank Note Company in the 1920s, shortly after the bank's establishment in 1927 — which itself was the direct outcome of a Kemmerer Mission recommendation to consolidate Ecuador's fractured monetary system. This 20 Sucres belongs to a series that spanned a decade of considerable instability, covering World War II and the 1941 conflict with Peru, during which Ecuador lost a substantial portion of its Amazonian territory.

ABNC notes from this period are sometimes found with ink oxidation along the intaglio-printed serial numbers, a known characteristic of certain South American tropical circulation issues from the early 1940s.