Angola has no historical or monetary connection to Papua New Guinea, and no documented reason exists for PNG to have issued a dollar-denominated coin bearing Angola's name in 2017. This piece almost certainly originates from one of several private minting operations that produce souvenir or fantasy issues attributed to real nations — Papua New Guinea's name lends nominal legitimacy while the "Angola" subject fills a thematic series. It is not legal tender in any meaningful sense.
Angola has no historical or monetary connection to Papua New Guinea, and no documented reason exists for PNG to have issued a dollar-denominated coin bearing Angola's name in 2017. This piece almost certainly originates from one of several private minting operations that produce souvenir or fantasy issues attributed to real nations — Papua New Guinea's name lends nominal legitimacy while the "Angola" subject fills a thematic series. It is not legal tender in any meaningful sense.