The đồng was the currency of North Vietnam from 3 November 1946 to 2 May 1978. It was subdivided into 10 hào, each itself divided into 10 xu.
South Vietnamese đồng
…The Ngân-Hàng Việt-Nam (Bank of Vietnam) issued notes in denominations of 10, 20 and 50 xu, 1, 2, 5, 10 and 50 đồng. The notes were dated 1966. North Vietnamese đồng Collection Banknotes of Vietnam and the World…