The Revolutionary Government of the Republic of Indonesia (more commonly known as PRRI) was a short lived rebel group in West Sumatra & North Sulawesi that attempted to disrupt the central government in Jakarta by deleting some policies which were deemed unfavorable. They were an exceptionally well armed and dangerous rebel group supported by a number of international agencies like the CIA in America and sovereign nations like Poland in Europe.
There should be a new section in the "Indonesia" part of the banknotes catalogue containing PRRI issued banknotes. Currently, the only PRRI banknote available on this platform ( P# S462) is listed as an "unspecified currency" banknote issued by the Rep. of Indonesia, while in reality it is a rupiah banknote issued by the PRRI
It should be noted that there are numerous other banknotes issued by the PRRI, although those are extremely rare.