Postage stamps and postal history of Western New Guinea
During the 1960s, the region had its own postage stamps. The first were overprints reading "UNTEA" (United Nations Temporary Executive Authority) applied to the stamps of Dutch New Guinea, issued in 1962. There are four slightly different types of overprint, three types applied locally, and a fourth made in the Netherlands and sold by the UN in New York City.
These were superseded on 1 May 1963 by stamps of Indonesia overprinted "IRIAN BARAT" and a series of six commemoratives whose designs included a map of Indonesia stretching "from Sabang to Merauke" and a parachutist landing in New Guinea. These, as were later issues in 1968 and 1970, were inscribed both "IRIAN BARAT" and "REPUBLIK INDONESIA".