1. IOR/R/20/B/579 Reference (shelfmark): IOR/R/20/B/579 Title: File 56/7A of 1937 Reports and Returns: Annual Report on the Social and Economic Progress of the People of the Colony of Aden 1937 Collection Area: India Office Records and Private Papers Languages: English Date Range: 20 Jul 1938-18 Jan 1940 Extent: 1 file