20 Sucres

The Banco Central del Ecuador relied heavily on the American Bank Note Company throughout the mid-twentieth century, a relationship that made New York effectively the production hub for Ecuador's paper currency during this period. ABNC's intaglio printing was the prestige standard for Latin American central banks at the time, and Ecuador was far from alone in outsourcing to them — but the dependency also meant that political or logistical disruptions in New York could delay a nation's money supply.

Pick 102 spans a full decade of issue, meaning individual specimens can vary in signature combinations, series letters, and control number ranges — differences that matter considerably to specialists narrowing down a precise date within the issue window.