PEN(redirected from add-on pen)
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The ISO 4217 currency code for the Peruvian Nuevo Sol.
ISO 4217 code for the Peruvian new sol. It was introduced in 1991, replacing the inti, which had replaced the first sol in 1985. It was issued to stem hyperinflation, which had plagued Peru in the late 1980s. Its inflation rate has historically been very low and it developed a reputation as a reliable South American currency.