Argentina - Some older coins....
1) 1 Decimo 1823, from the State of Buenos Ayres, after the Spanish were repelled Argentina became a confederation of states, lacking in a central government, so each state had it's own coins.
2) 10 Centimos 1883. Argentina was unified in 1862, however a new coinage was not introduced until 1881
3) 25 Pesos 1968, commemorating the 80th anniversary of the death of
Domingo Faustino Sarmiento. The peso having steadily declined in value from the mid 1950's.
4) 100 Pesos 1979, centennial of the conquest of Patagonia commemorative. In 1970 a new coinage was issued 100 old Pesos = 1 New Peso, but by 1979 the Peso was again worthless due to inflation.
5) 10 Pesos 1985, Building at Tucumen, a New Peso was introduced in 1983, the Peso Argentino. This time 10,000 Peso Argentinos = 1 Old Peso.
6) 1000 Australes 1991, Another new coinage in 1985, this time 1000 Old Peso Argentinos = 1 New Australe. This too was replaced, by the current coinage in 1992, at a rate of 10,000 Old Australes = 1 New Peso.
So one current Peso = 10,000,000,000,000 original pesos.
(seems my maths is right, see
http://en.wikipedia.org/wiki/Argentine_peso 
)