21. IOR/R/20/A/21 Reference (shelfmark): IOR/R/20/A/21 Title: Vol 16 Secret correspondence relating to the cession of the Mussah and Aubaad islands; Lt Barker's report on Tajjura Collection Area: India Office Records and Private Papers Languages: English Date Range: 1840-1841 Extent: 1 volume
22. IOR/R/20/A/22 Reference (shelfmark): IOR/R/20/A/22 Title: Vol 16A (Pt 1) Correspondence relating to events in the Red Sea and Mocha; the embassy to Shoa Collection Area: India Office Records and Private Papers Languages: English Date Range: 1840-1841 Extent: 1 volume
23. IOR/R/20/A/23 Reference (shelfmark): IOR/R/20/A/23 Title: Vol 16A (Pt 2) Correspondence relating to events in the Red Sea and Mocha; the embassy to Shoa Collection Area: India Office Records and Private Papers Languages: English Date Range: 1840-1841 Extent: 1 volume
24. IOR/R/20/A/24 Reference (shelfmark): IOR/R/20/A/24 Title: Vol 17-18 (Pt 1) Letters outward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1840-1841 Extent: 1 volume
25. IOR/R/20/A/25 Reference (shelfmark): IOR/R/20/A/25 Title: Vol 17-18 (Pt 2) Letters outward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1840-1841 Extent: 1 volume
26. IOR/R/20/A/26 Reference (shelfmark): IOR/R/20/A/26 Title: Vol 17-18 (Pt 3) Letters outward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1840-1841 Extent: 1 volume
27. IOR/R/20/A/27 Reference (shelfmark): IOR/R/20/A/27 Title: Vol 20 (Pt 1) Political and Secret letters inward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1842 Extent: 1 volume
28. IOR/R/20/A/28 Reference (shelfmark): IOR/R/20/A/28 Title: Vol 20 (Pt 2) Political and Secret letters inward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1842 Extent: 1 volume
29. IOR/R/20/A/29 Reference (shelfmark): IOR/R/20/A/29 Title: Vols 21-22 (Pt 1) General letters inward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1842 Extent: 1 volume
30. IOR/R/20/A/30 Reference (shelfmark): IOR/R/20/A/30 Title: Vols 21-22 (Pt 2) General letters inward Collection Area: India Office Records and Private Papers Languages: English Date Range: 1842 Extent: 1 volume