In 1869, the centavo was introduced, worth one hundredth of a peso, but the real continued to be produced until 1912, when Guatemala fully decimalized.
However, convertibility was suspended in 1895, and as more pesos were issued as fiat money, the peso's value fell considerably.
[1] Silver coins were initially issued in denominations of ¼, ½, 1, 2 and 4 reales and 1 peso, whilst gold coins were issued in denominations of 4 reales, 1, 2, 4, 8 and 16 pesos.
Following the suspension of the peso's peg to the French franc and convertibility to silver, the issuance of silver coins ceased in 1900, as the currencies value fell.
A 1 real nickel coin was issued until 1912.