2 1/2 Rupiah

Irian Jaya — the western half of New Guinea — was administered by the Netherlands as Nederlands Nieuw-Guinea until 1962, when U.S.-brokered negotiations forced the Dutch to transfer control to a UN transitional authority (UNTEA). Indonesia assumed full administration in May 1963. This piece dates to that transitional moment, issued under the brief Indonesian provincial identity before the territory was fully absorbed. The KM#PN2 designation as a pattern (PN) confirms it never entered general circulation — struck as part of a proposed coinage series for the new province that was ultimately abandoned.