1. IOR/R/20/A/4405-4507 Reference (shelfmark): IOR/R/20/A/4405-4507 Title: Trade Registration Office Collection Area: India Office Records and Private Papers Languages: English Date Range: 1905-1955 Extent: 103 volumes
2. IOR/R/20/A/4508-4516 Reference (shelfmark): IOR/R/20/A/4508-4516 Title: Aden Settlement Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1942 Extent: 9 files
3. IOR/R/20/A/4517-4519 Reference (shelfmark): IOR/R/20/A/4517-4519 Title: Aden Port Trust Collection Area: India Office Records and Private Papers Languages: English Date Range: 1908-1951 Extent: 3 files