21. IOR/R/20/A/1242 Reference (shelfmark): IOR/R/20/A/1242 Title: File 2/1 Pt. II Tramways and Railways: Aden Tramway Collection Area: India Office Records and Private Papers Languages: English Date Range: 1908-1920 Extent: 1 file
22. IOR/R/20/A/1243 Reference (shelfmark): IOR/R/20/A/1243 Title: File 2/2 Tramways and Railways: Hejaz and Yemen Railway Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1910 Extent: 1 file
23. IOR/R/20/A/1244 Reference (shelfmark): IOR/R/20/A/1244 Title: File 2/3 Tramways and Railways: Aden Hinterland Collection Area: India Office Records and Private Papers Languages: English Date Range: 1904-1911 Extent: 1 file
24. IOR/R/20/A/1245 Reference (shelfmark): IOR/R/20/A/1245 Title: File 2/3 Pt. III Tramways and Railways: Aden Hinterland Collection Area: India Office Records and Private Papers Languages: English Date Range: 1919-1921 Extent: 1 file
25. IOR/R/20/A/1246 Reference (shelfmark): IOR/R/20/A/1246 Title: File 2/4 Tramways and Railways: Miscellaneous Collection Area: India Office Records and Private Papers Languages: English Date Range: 1905-1910 Extent: 1 file
26. IOR/R/20/A/1247 Reference (shelfmark): IOR/R/20/A/1247 Title: File 2/5 Tramways and Railways: Abdali Railway Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1912 Extent: 1 file
27. IOR/R/20/A/1248 Reference (shelfmark): IOR/R/20/A/1248 Title: File 3/1 Books and Publications: Annual reports and returns from Assistant Residents Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1928 Extent: 1 file
28. IOR/R/20/A/1249 Reference (shelfmark): IOR/R/20/A/1249 Title: File 3/2 Books and Publications: Books and publications in the possession of the Political Resident Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1914 Extent: 1 file
29. IOR/R/20/A/1250 Reference (shelfmark): IOR/R/20/A/1250 Title: File 3/3 Books and Publications: Political Department: Standing Orders Collection Area: India Office Records and Private Papers Languages: English Date Range: 1895-1915 Extent: 1 file
30. IOR/R/20/A/1251 Reference (shelfmark): IOR/R/20/A/1251 Title: File 3/4 Pt. I Books and Publications: Books and publications: miscellaneous Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1912 Extent: 1 file