100 Sucres

The Banco Central del Ecuador had been issuing sucre-denominated notes through ABNC for decades by the time this series appeared, a relationship that stretched back to the 1940s. By 1980, Ecuador was riding an oil boom that had begun following its entry into OPEC in 1973, and high-denomination notes like this were increasingly common in daily commerce as inflation eroded the currency's purchasing power through the decade.

Pick 112A distinguishes itself from closely related issues by the signature combination — a detail that trips up collectors who treat the 112 series as interchangeable.