A few years ago I was in Costa Rica for a while. I bought this discontinued Cinco Colones bill from a guy on the street. I thought the art on the back side was worth owning.
"Colon" (pronounced co-LOAN) is the Spanish for "Columbus." Colon is a common surname in the Caribbean. I don't know the exchange rate for colones (co-LOAN-ace) to dollars. I bought the bill for $5.00.