21. IOR/R/20/A/1336 Reference (shelfmark): IOR/R/20/A/1336 Title: File 19/5 Abdali Affairs: Taxes Collection Area: India Office Records and Private Papers Languages: English Date Range: 1918 Extent: 1 file
22. IOR/R/20/A/1371 Reference (shelfmark): IOR/R/20/A/1371 Title: File 30/3 Extradition: Aden Protectorate Collection Area: India Office Records and Private Papers Languages: English Date Range: 1905-1906 Extent: 1 file
23. IOR/R/20/A/1372 Reference (shelfmark): IOR/R/20/A/1372 Title: File 30/4 Extradition: Abdali State Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1914 Extent: 1 file
24. IOR/R/20/A/1376 Reference (shelfmark): IOR/R/20/A/1376 Title: File 34/2 Cantonments: Miscellaneous subjects Collection Area: India Office Records and Private Papers Languages: English Date Range: 1910-1912 Extent: 1 file
25. IOR/R/20/A/1382 Reference (shelfmark): IOR/R/20/A/1382 Title: File 35/6 Codes: Cypher codes Collection Area: India Office Records and Private Papers Languages: English Date Range: 1902-1922 Extent: 1 file
26. IOR/R/20/A/1398 Reference (shelfmark): IOR/R/20/A/1398 Title: File 41/2 Establishment: Aden Settlement Collection Area: India Office Records and Private Papers Languages: English Date Range: 1912-1919 Extent: 1 file
27. IOR/R/20/A/1408 Reference (shelfmark): IOR/R/20/A/1408 Title: File 47/2 Pt. II Hadhramaut Collection Area: India Office Records and Private Papers Languages: English Date Range: 1914-1918 Extent: 1 file
28. IOR/R/20/A/1418 Reference (shelfmark): IOR/R/20/A/1418 Title: File 49/1 Audali: Protectorate Treaty Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906-1908 Extent: 1 file
29. IOR/R/20/A/1463 Reference (shelfmark): IOR/R/20/A/1463 Title: File 61/5 Secret Service: Miscellaneous Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1914 Extent: 1 file
30. IOR/R/20/A/1468 Reference (shelfmark): IOR/R/20/A/1468 Title: File 62/1 Ceremonial Visits: Etiquette Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906-1914 Extent: 1 file