5 Rupiah

The Pemerintah Revolusioner Republik Indonesia — better known by its acronym PRRI — was a rebel counter-government proclaimed in February 1958 from Padang, West Sumatra, in direct opposition to Sukarno's Jakarta administration. It issued its own currency as a straightforward assertion of administrative legitimacy over the territories it controlled, primarily in Sumatra and parts of Sulawesi.

The rebellion had effectively collapsed by mid-1958 after military operations, which makes a 1959-dated issue an outlier — likely printed in anticipation of a territorial hold that never materialized, or circulated within shrinking pockets of resistance in the outer islands.