Territory of Papua ended in 1949.

Territory of Papua was created in 1884.

The western, Indonesian half of the island known as New Guinea is Papua Barat (West Papua). 2 provinces in that area is Papua Province and Papua Barat Province.

No. None of the stars on the Australian glag symbolise Papua New Guinea, because PNG is not a territory of Australia any more - nor was it a territory when the flag was originally designed.

Papua New Guinea was Australian territory.