A 50 sen note from Bank Indonesia's 1964 sen series, printed by P.N. Pertjetakan Kebajoran. One side shows a soldier in a peaked cap, in profile, wearing a 'Sukarelawan' (volunteer) badge, with a large red 50 and the value 'Lima Puluh Sen'. The other side carries brown guilloche rosettes around the numeral 50. The volunteer theme of this series reflects the mobilisation campaigns of President Sukarno's government in the mid-1960s.