50 Nuevos Soles

The "Nuevos Soles" denomination name dates to Peru's 1991 currency reform, when the inti was replaced at a rate of one million intis per nuevo sol — a direct consequence of the hyperinflationary collapse that had seen annual inflation exceed 7,000% in 1990. The nuevo sol was itself rebranded simply as "sol" in 2015, which technically makes this series the final issues under the transitional nomenclature.

P#189 belongs to a mid-series update cycle rather than a foundational issue, with printing contracted to the Casa de Moneda de Perú in Lima.