1. IOR/Z/L/PS/4 Reference (shelfmark): IOR/Z/L/PS/4 Title: Correspondence with India in the Secret, Political and Foreign Departments Collection Area: India Office Records and Private Papers Languages: English Date Range: 1784-1858 Extent: 11 volumes
2. IOR/Z/L/PS/4/7 Reference (shelfmark): IOR/Z/L/PS/4/7 Title: Board's Index to Letters from Bengal and Bombay in the Secret, Political and Foreign Departments Scope & Content: (7) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1813-1818 Extent: 1 volume
3. IOR/Z/L/PS/4/6 Reference (shelfmark): IOR/Z/L/PS/4/6 Title: Board's Index to Letters from Bengal, Madras and Bombay in the Secret, Political and Foreign Departments Scope & Content: (6) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1812 Extent: 1 volume
4. IOR/Z/L/PS/4/12 Reference (shelfmark): IOR/Z/L/PS/4/12 Title: Board's Register of Letters from and Despatches to India, Bengal, Madras, Bombay, etc., in the Secret, Political and Foreign Departments Collection Area: India Office Records and Private Papers Languages: English Date Range: 1827-1840 Extent: 1 volume
5. IOR/Z/L/PS/4/1 Reference (shelfmark): IOR/Z/L/PS/4/1 Title: Board's General Index to Letters from Bengal, Madras and Bombay in the Secret, Political and Foreign Departments Scope & Content: A-F Collection Area: India Office Records and Private Papers Languages: English Date Range: 1784-1798 Extent: 1 volume
6. IOR/Z/L/PS/4/2 Reference (shelfmark): IOR/Z/L/PS/4/2 Title: Board's General Index to Letters from Bengal, Madras and Bombay in the Secret, Political and Foreign Departments Scope & Content: G-O Collection Area: India Office Records and Private Papers Languages: English Date Range: 1784-1798 Extent: 1 volume
7. IOR/Z/L/PS/4/3 Reference (shelfmark): IOR/Z/L/PS/4/3 Title: Board's General Index to Letters from Bengal, Madras and Bombay in the Secret, Political and Foreign Departments Scope & Content: P-Z Collection Area: India Office Records and Private Papers Languages: English Date Range: 1784-1798 Extent: 1 volume
8. IOR/Z/L/PS/4/8 Reference (shelfmark): IOR/Z/L/PS/4/8 Title: Board's Register of Letters from and to Bengal, Madras, Bombay, etc., in the Secret, Political and Foreign Departments Collection Area: India Office Records and Private Papers Languages: English Date Range: 1816-1826 Extent: 1 volume
9. IOR/Z/L/PS/4/9 Reference (shelfmark): IOR/Z/L/PS/4/9 Title: Board's Register of Letters from and to Bengal, Madras, Bombay, etc., in the Secret, Political and Foreign Departments Collection Area: India Office Records and Private Papers Languages: English Date Range: 1825-1834 Extent: 1 volume
10. IOR/Z/L/PS/4/10 Reference (shelfmark): IOR/Z/L/PS/4/10 Title: Board's Register of Letters from and to India, Bengal, Madras, Bombay, etc., in the Secret, Political and Foreign Departments Collection Area: India Office Records and Private Papers Languages: English Date Range: 1834-1845 Extent: 1 volume