41. IOR/R/20/E/76 Reference (shelfmark): IOR/R/20/E/76 Title: Vol 1 File 1 Mission to Abyssinia [Secret] Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1867-Dec 1867 Extent: 1 volume
42. IOR/R/20/E/77, Item 1 Reference (shelfmark): IOR/R/20/E/77, Item 1 Title: Vol 2 File 4 Aden affairs [Secret] Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1867-Mar 1867 Extent: 1 part volume
43. IOR/R/20/E/78 Reference (shelfmark): IOR/R/20/E/78 Title: Vol I No 2 File 6 Aden affairs Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1868-Nov 1868 Extent: 1 volume
44. IOR/R/20/E/82 Reference (shelfmark): IOR/R/20/E/82 Title: Vol I No 2 File 80 Aden affairs Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1870-Dec 1870 Extent: 1 volume
45. IOR/R/20/E/106 Reference (shelfmark): IOR/R/20/E/106 Title: Vol XI No 12 File 1129 Dhala affairs Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1876-Dec 1876 Extent: 1 volume
46. IOR/R/20/E/250 Reference (shelfmark): IOR/R/20/E/250 Title: File 101 Part I Aden Boundary Delimitation Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1903-Jul 1904 Extent: 1 volume
47. IOR/R/20/E/251 Reference (shelfmark): IOR/R/20/E/251 Title: File 101 Pt II Aden Boundary Delimitation Commission Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1904-Dec 1904 Extent: 1 volume
48. IOR/R/20/E/54 Reference (shelfmark): IOR/R/20/E/54 Title: Vol I No 1 File 26 Aden affairs [Secret] Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1858-Dec 1858 Extent: 1 volume
49. IOR/R/20/E/59 Reference (shelfmark): IOR/R/20/E/59 Title: Vol III No 3 File 300 Kuria Muria Islands Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1859-Jul 1859 Extent: 1 volume
50. IOR/R/20/E/80 Reference (shelfmark): IOR/R/20/E/80 Title: Vol I No 3 File 3 Aden affairs [Secret] Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1869-Nov 1869 Extent: 1 volume