The gulden was the currency of West New Guinea until 1963. Until 1950, issues of the Netherlands Indies circulated. A separate currency came into being when West New Guinea became the only part of the Netherlands Indies to remain in Dutch control. It circulated until West New Guinea became part of Indonesia, when the West New Guinea rupiah was introduced. This article or section should be merged with Papua (Indonesian province) Map showing West New Guinea region The region of West New Guinea is the western half of the island of New Guinea or Papua, and has also been known as Irian Jaya or West Papua. ... The Dutch East Indies, or Netherlands East Indies, (Dutch: Nederlands Indië) was the name of the colonies colonised by the Dutch East India Company which came under administration of the Netherlands during the ninteenth century (see Indonesia). ... The Dutch East Indies, or Netherlands East Indies, (Dutch: Nederlands Indië) was the name of the colonies colonised by the Dutch East India Company which came under administration of the Netherlands during the ninteenth century (see Indonesia). ... The rupiah was a separate currency in West New Guinea between 1963 and 1973. ...