1. IOR/R/20/B/581 Reference (shelfmark): IOR/R/20/B/581 Title: File 56/7B Pt I of 1937 Reports and Returns: compilation of the Aden Blue Book, 1937 Collection Area: India Office Records and Private Papers Languages: English Date Range: 21 Jan 1938-23 Feb 1939 Extent: 1 file