CO - Records of the Colonial Office, Commonwealth and Foreign and Commonwealth Offices, Empire Marketing Board, and related bodies. Division within CO - Records of the Social Services Department and successors. CO 859 - Colonial Office: Social Services Department and successors: Registered Files (12,000, SS and other Series). Subseries within CO 859 - SOCIAL WELFARE. Deputation from League of Coloured People (CO/859/40/1)