The Kina (ISO 4217 currency code: PGK, the currency symbol: K) is the currency of Papua New Guinea. It is divided into 100 toea. The name Kina is derived from Kuanua language of the Tolai region, referring to a callable pearl shell used widely for trading in both the Coastal and Highlands areas of the country. History. The kina was introduced on 19 April 1975 and circulated along with the Australian dollar until 31 December 1975. The two currencies were equal in value (K1 = A$1). The next day, the dollar ceased to be legal tender in Papua New Guinea.
https://en.wikipedia.org/wiki/Papua_New_Guinean_kina