21. IOR/L/PS/20/B260/5 Reference (shelfmark): IOR/L/PS/20/B260/5 Title: [Corrections, additions and alterations to the list of leading personages in Baluchistan, 1933-1944 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1933-1944 Extent: Unspecified
22. IOR/L/PS/20/B255/1 Reference (shelfmark): IOR/L/PS/20/B255/1 Title: Military report on Afghanistan. History, geography, ethnography, resources, armed forces, forts and fortified posts, administration, and communications Delhi: General Staff India, 1925 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1925 Extent: xxxii, 741pp maps (1 in pocket)
23. IOR/L/PS/20/B298 Reference (shelfmark): IOR/L/PS/20/B298 Title: Strategical considerations affecting the alignment of the North-West Frontier of India [Simla: General Staff India, 1919] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1919 Extent: i, 20pp 4 maps (3 in pocket)
24. IOR/L/PS/20/B238/1 Reference (shelfmark): IOR/L/PS/20/B238/1 Title: Routes south of Kabul River Simla: General Staff India, 7th edn, 1937 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937 Extent: x, 358pp map (in pocket)
25. IOR/L/PS/20/B257/1 Reference (shelfmark): IOR/L/PS/20/B257/1 Title: Handbook of the Afghan Army Delhi: General Staff India, 4th edn, 1927 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1927 Extent: iv, 83pp map (in pocket)
26. IOR/L/PS/20/B221 Reference (shelfmark): IOR/L/PS/20/B221 Title: Routes in Chitral, Gilgit & Kohistan, 1941 Simla: General Staff India, 4th edn, 1942 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1942 Extent: x, 485pp map (in pocket)
27. IOR/L/PS/20/B223/3 Reference (shelfmark): IOR/L/PS/20/B223/3 Title: Corrections to routes in Afghanistan North-West 1923 Simla, General Staff India, 1st series, 1925 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1925 Extent: 1p
28. IOR/L/PS/20/B223/4 Reference (shelfmark): IOR/L/PS/20/B223/4 Title: Corrections to routes in Afghanistan North-West 1923 Simla, General Staff India, 2nd series, 1926 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1926 Extent: 2pp
29. IOR/L/PS/20/B223/5 Reference (shelfmark): IOR/L/PS/20/B223/5 Title: Corrections to routes in Afghanistan North-West 1923 Simla, General Staff India, 3rd series, 1927 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1927 Extent: 14pp
30. IOR/L/PS/20/B223/10 Reference (shelfmark): IOR/L/PS/20/B223/10 Title: Corrections to routes in Afghanistan South-West, 1923 Calcutta: General Staff India, 3rd series, 1928 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1928 Extent: 58pp