KM #536 Image of Juana de Asbaje, type date span: 1988-1992; composition: Aluminum-Bronze. Common issue. A couple of years ago, in VF the coin was worth (retail value) either $0.85 or $1.00 depending on the year (1991 and 1992 were worth $1.00).
This is what is called an 'old peso' coin. New peso coins have eliminated three of the '000s'; so, today, this is equivalent to a one peso coin. About 12 to 13 pesos today are equal to one US$.
You may wish to check Ebay's "Completed listings" to see what prices are currently being realized.
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