1. IOR/L/PS/20/A Reference (shelfmark): IOR/L/PS/20/A Title: Political and Secret Department Library 'A' Books Scope & Content: Covers Russian Empire, Chinese Turkestan and Central Asia (also includes some early items relating to Persia and Afghanistan) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1834-1929 Extent: 33 volumes (55 items)
2. IOR/L/PS/20/A7/1 Reference (shelfmark): IOR/L/PS/20/A7/1 Title: Political and Secret Department Library 'A' Books: Volume 1 Collection Area: India Office Records and Private Papers Languages: English Date Range: c 1839 Extent: 1 volume
3. IOR/L/PS/20/A7/2 Reference (shelfmark): IOR/L/PS/20/A7/2 Title: Political and Secret Department Library 'A' Books: Volume 2 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1844-1857 Extent: 1 volume
4. IOR/L/PS/20/A7/3 Reference (shelfmark): IOR/L/PS/20/A7/3 Title: Political and Secret Department Library 'A' Books: Volume 3 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1857 Extent: 1 volume
5. IOR/L/PS/20/A56 Reference (shelfmark): IOR/L/PS/20/A56 Title: Political and Secret Department Library 'A' Books: Volume 56 Collection Area: India Office Records and Private Papers Languages: English Date Range: c 1893 Extent: 1 volume
6. IOR/L/PS/20/A107/1 Reference (shelfmark): IOR/L/PS/20/A107/1 Title: Political and Secret Department Library 'A' Books: Volume 107/1 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1911-1913 Extent: 1 volume
7. IOR/L/PS/20/A121 Reference (shelfmark): IOR/L/PS/20/A121 Title: Personalities in Trans-Caucasia. 1919 Simla: General Staff India, 1920 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1920 Extent: i, 181pp
8. IOR/L/PS/20/A118/1 Reference (shelfmark): IOR/L/PS/20/A118/1 Title: Routes in Sinkiang Simla: General Staff India, 1926 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1926 Extent: xiv, 278, 74pp 1 map (in pocket)
9. IOR/L/PS/20/A118/2 Reference (shelfmark): IOR/L/PS/20/A118/2 Title: Military report on Sinkiang (Chinese Turkestan) Simla: General Staff India, 1929 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1929 Extent: iv, 308pp maps plans sketches (in pockets)
10. IOR/L/PS/20/A106 Reference (shelfmark): IOR/L/PS/20/A106 Title: Road report Kuldja to Kabulsai Simla: General Staff India, 1911 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1911 Extent: i, 29pp map (in pocket)