50 000 Soles de Oro

Peru's inflationary spiral through the early 1980s made the 50,000 Soles de Oro a high-denomination note almost as soon as it was issued — within a few years it could barely purchase a meal. The series was eventually swept aside when the Inti replaced the Sol de Oro in February 1985 at a rate of 1,000 to one, instantly rendering the entire denomination trivial in face value terms.

Two distinct printers handled this type: American Bank Note Company and De La Rue, producing variants that can differ in subtle plate and paper characteristics. The dual-source printing arrangement was a practical hedge against supply bottlenecks as demand for high-denomination notes accelerated faster than any single printer could manage.