Fronteira "Moçambique-Niassalandia" = "Nyasaland-Mozambique" frontier.
[Lisbon,
1956]
Relief shown by contours and spot heights.
Text in Portuguese and English.
Insets: Enlargements of selected beacons.
Each map signed by delegates on the 26th August 1956.
"Lito-EMOL-L.M."