The Dutch were unwilling to cede to Indonesian control, preferring instead to establish a state of Papua.
However, a subsequent decree of 15 September 1966 restored the validity of the Irian money, recalling the Indonesian rupiah from Indonesia.
The Netherlands New Guinea gulden, fixed at par to the Dutch guilder, was exchangeable at 3.62 to the US dollar at the time of original conversion in 1963.
Pertjetakan Kebajoran (currently Perum Peruri) dated "1960" with the overprint "Irian Barat" in denominations of 5, 10, and 100 rupiah bearing the image of President Sukarno.
The government notes were dated "1961" with the "Irian Barat" overprint in 1 and 2½ rupiah denominations.