constructed, drawn and photographed by Directorate of Overseas Surveys. Relief shown by contours and spot heights. Some maps have title: Basutoland with part of Republic of South Africa ; some have title: Basutoland with part of Union of South Africa. Mixed set: includes various editions and some maps are preliminary plot. Some maps constructed by: Directorate of Colonial Surveys as part of series D.C.S. 21. Includes boundary, magnetic declination and reliability diagrams and index to adjoining sheets. Standard map series designation: Z 782. Grid: East-Africa Belt F.