20 Nuevos Soles

The "Nuevos Soles" denomination family was introduced in 1991 as part of Peru's monetary redenomination, replacing the Inti at a rate of one million to one — itself a currency that had replaced the Sol in 1985 during a period of catastrophic hyperinflation that peaked above 7,000% annually. By 2009, the Nuevo Sol was stable enough that the BCR was issuing these notes with a multi-year date range, a scheduling approach that reflected routine replacement cycles rather than any monetary disruption.

The print run of just over twelve million is modest for a mid-denomination note in a country of Peru's size, suggesting the 20 Sol slot was not the workhorse of daily commerce that the 10 and 50 denominations typically were.