Division within OD1939-2003Records of the Directorate of Colonial Surveys and successors
Records of the Colonial Office's Directorate of Colonial Surveys and its successors relating to surveying and mapping of developing countries and the provision of techical advice and training for personnel from these countries.
Comprises director's files in OD 5 and registered files in OD 6
Directorate of Overseas Surveys and predecessors library records are in OD 70