21. IOR/R/20/A/4092 Reference (shelfmark): IOR/R/20/A/4092 Title: File 52/2 World War I: Idrisi: arms and ammunition Collection Area: India Office Records and Private Papers Languages: English Date Range: Mar 1918-Feb 1921 Extent: 1 file
22. IOR/R/20/A/4095 Reference (shelfmark): IOR/R/20/A/4095 Title: File 56/1 World War I: Arms and ammunition: Residency stock Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1914-Aug 1920 Extent: 1 file
23. IOR/R/20/A/4100 Reference (shelfmark): IOR/R/20/A/4100 Title: File 57/1/II World War I: Secret Intelligence: miscellaneous reports Collection Area: India Office Records and Private Papers Languages: English Date Range: 1915-1917 Extent: 1 file
24. IOR/R/20/A/4106 Reference (shelfmark): IOR/R/20/A/4106 Title: File 59/4 World War I: War: instructions, orders, etc Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914-1920 Extent: 1 file
25. IOR/R/20/A/4107 Reference (shelfmark): IOR/R/20/A/4107 Title: File 60/1 World War I: Suspect enemy agents, spies, etc Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1915-Jul 1920 Extent: 1 file
26. IOR/R/20/A/4108 Reference (shelfmark): IOR/R/20/A/4108 Title: File 61 World War I: Secret papers concerning World War I Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914-1915 Extent: 1 file
27. IOR/R/20/A/4068 Reference (shelfmark): IOR/R/20/A/4068 Title: File 7/2 World War I: Treatment of foreigners after the War Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1916-Jan 1922 Extent: 1 file
28. IOR/R/20/A/4094 Reference (shelfmark): IOR/R/20/A/4094 Title: File 53/2 World War I: Orders etc., regarding hostile trading firms Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914-1923 Extent: 1 file
29. IOR/R/20/A/4070 Reference (shelfmark): IOR/R/20/A/4070 Title: File 12/8 World War I: Arming of British merchant ships, Royal Navy Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1913-Jul 1917 Extent: 1 file
30. IOR/R/20/A/4076 Reference (shelfmark): IOR/R/20/A/4076 Title: File 21/5 World War I: Resettlement of the Aden Protectorate after the war Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1919-Aug 1920 Extent: 1 file