Bechuanaland.
Great Britain.Directorate of Overseas Surveys.
Great Britain.Directorate of Colonial Surveys.
Tolworth, Surrey, England : Directorate of Overseas Surveys,
[1955-
Relief shown by form lines and spot heights.
Sheets issued  compiled, drawn, and published by the Directorate of Colonial Surveys as DCS 47; sheets issued  constructed, drawn, and published by the Directorate of Overseas Surveys as DOS 547.
Includes various editions of some sheets.
In upper margin of some sheets issued : Preliminary plot.
Includes reliability diagram and index to adjoining sheets.
Some sheets include boundary diagram.
Standard map series designation on sheets issued : Series Z661.
Graphic index in central file.