A political map of the Nùng Autonomous Territory based on a map its government's official information book.
Own work
This file was derived from:

 Map of the Nùng Autonomous Territory (government informational booklet).jpg
Quang Ninh in Vietnam.svg
BlankMap-World gray.svg
Maps template-en.svg
Hải Ninh Province borders (1940's) OpenStreetMap.png
Nùng Autonomous Territory, French Indo-China (Concept map).pngDerived from;

OSMInformation from:

reddit.com
Donald Trung
Goran tek-en, following request by and knowledge from Donald Trung