Colombia, 10 Peso note, 1980.  General Nariño and a buzzard on the front;  the ancient stone figures of San Agustin on back. 

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Argentina, 10 old old Peso note.  General Belgrano on the front;  the Falls of Iguazu -- from the Argentine side -- on back.

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Peru, Old 50 Sol note.  1977.  Tupak Amaru II and mine workers on the front;  "The historic town of Tinta" on the back.

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Peru, Old 100 Sol note.  1975.  Hipolito Unanue and laborers on the front;  "The church of La Caridad" on the back "scene of the first national congress.

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Peru, Old 500 Sol note.  1976.  Jose Quinoñtes on the front;  A lumber mill(!) in the Amazon region on the back.

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In the late 1970's inflation ravaged the old Sol currency and it was replaced with a new unit (not shown) called the "Inti" -- the Quechua word for sun. When the Inti also was inflated beyond repair the next (current) new currency unit was the Nuevo (new) Sol.