21. IOR/R/20/A/4974 Reference (shelfmark): IOR/R/20/A/4974 Title: File 32 Government Telegraph Code Collection Area: India Office Records and Private Papers Languages: English Date Range: 1924-1926 Extent: 1 file
22. IOR/R/20/A/4975 Reference (shelfmark): IOR/R/20/A/4975 Title: File 33 Draft Police Regulations Collection Area: India Office Records and Private Papers Languages: English Date Range: 1934 Extent: 1 file
23. IOR/R/20/A/4985 Reference (shelfmark): IOR/R/20/A/4985 Title: File 43 Arms and Ammunitions Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917-1923 Extent: 1 file
24. IOR/R/20/A/4990 Reference (shelfmark): IOR/R/20/A/4990 Title: File 48 Defence Scheme Conference Collection Area: India Office Records and Private Papers Languages: English Date Range: 1929-1931 Extent: 1 file
25. IOR/R/20/A/4991 Reference (shelfmark): IOR/R/20/A/4991 Title: File 49 Aden Defence Scheme Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937 Extent: 1 file
26. IOR/R/20/A/4996 Reference (shelfmark): IOR/R/20/A/4996 Title: File 55 Egyptian political deportees Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922 Extent: 1 file
27. IOR/R/20/A/5012 Reference (shelfmark): IOR/R/20/A/5012 Title: File 71 Secret Service expenditure Collection Area: India Office Records and Private Papers Languages: English Date Range: 1923-1930 Extent: 1 file
28. IOR/R/20/A/4952 Reference (shelfmark): IOR/R/20/A/4952 Title: File 10 Persian Gulf Intelligence Reports Collection Area: India Office Records and Private Papers Languages: English Date Range: 1935-1937 Extent: 1 file
29. IOR/R/20/A/4959 Reference (shelfmark): IOR/R/20/A/4959 Title: File 17 Railway Aden Hinterland: Construction Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907 Extent: 1 file
30. IOR/R/20/A/4961 Reference (shelfmark): IOR/R/20/A/4961 Title: File 19 Captain Hoffman, German Army Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906-1924 Extent: 1 file