21. IOR/Z/L/PS/11/25 Reference (shelfmark): IOR/Z/L/PS/11/25 Title: Political and Secret Department Index Collection Area: India Office Records and Private Papers Languages: English Date Range: 1926 Extent: 1 volume
22. IOR/Z/L/PS/11/26 Reference (shelfmark): IOR/Z/L/PS/11/26 Title: Political and Secret Department Register Collection Area: India Office Records and Private Papers Languages: English Date Range: 1927 Extent: 1 volume
23. IOR/Z/L/PS/11/27 Reference (shelfmark): IOR/Z/L/PS/11/27 Title: Political and Secret Department Index Collection Area: India Office Records and Private Papers Languages: English Date Range: 1927 Extent: 1 volume
24. IOR/Z/L/PS/11/28 Reference (shelfmark): IOR/Z/L/PS/11/28 Title: Political and Secret Department Register Collection Area: India Office Records and Private Papers Languages: English Date Range: 1928 Extent: 1 volume
25. IOR/Z/L/PS/11/29 Reference (shelfmark): IOR/Z/L/PS/11/29 Title: Political and Secret Department Index Collection Area: India Office Records and Private Papers Languages: English Date Range: 1928 Extent: 1 volume
26. IOR/Z/L/PS/11/30 Reference (shelfmark): IOR/Z/L/PS/11/30 Title: Political and Secret Department Register Collection Area: India Office Records and Private Papers Languages: English Date Range: 1929 Extent: 1 volume
27. IOR/Z/L/PS/11/31 Reference (shelfmark): IOR/Z/L/PS/11/31 Title: Political and Secret Department Index Collection Area: India Office Records and Private Papers Languages: English Date Range: 1929 Extent: 1 volume
28. IOR/Z/L/PS/11/32 Reference (shelfmark): IOR/Z/L/PS/11/32 Title: Political and Secret Department Register Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930 Extent: 1 volume
29. IOR/Z/L/PS/11/33 Reference (shelfmark): IOR/Z/L/PS/11/33 Title: Political and Secret Department Index Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930 Extent: 1 volume
30. IOR/Z/L/PS/11/1 Reference (shelfmark): IOR/Z/L/PS/11/1 Title: Political and Secret Department Registers, with Indexes Collection Area: India Office Records and Private Papers Languages: English Date Range: 1912 Extent: 1 volume