Coats of arms of Argentina and Uruguay, the countries who shared contruction of the hydroelectric dam, and date. Salto Grande (Big Jump) is the name of the waterfall that existed prior to the dam building.
Obverse script
Latin
Obverse lettering
SALTO GRANDE OBRA BINACIONAL
So
1981 (Translation: Salto Grande bi-national building site)
Reverse description
Name of country on top, Hydroelectric dam at center, value on bottom. This hydroelectric dam was built on the shared effort of Argentina and Uruguay, and electric power generated is also shared between both countries.
Reverse script
Latin
Reverse lettering
URUGUAY
N$ 5.000
Edge
Reeded
Mint
(So) Casa de Moneda de Chile,Santiago, Chile (1743-date)