Svalbard, Spitsbergen : boundary map of the area ... belonging to the Northern Exploration Company Limited.
Oslo : Kongelege Departement for Handel, Sjøfart, Industri og Fiske, Norske Svalbardekspedisjonane.
1927.
In Norwegian and English.
"Prepared and published at the instance of Kristian Sindballe, Svalbard Commissioner."