1. IOR/L/PS/20/D160/1/1 Reference (shelfmark): IOR/L/PS/20/D160/1/1 Title: Military report on Siam Calcutta: Intelligence Branch, Div of Chief of Staff, 1907 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907 Extent: iii, 254pp maps (1 in pocket)
2. IOR/L/PS/20/D160/1/2 Reference (shelfmark): IOR/L/PS/20/D160/1/2 Title: Additions and corrections to Military report on Siam [Calcutta: General Staff India, 1912] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1912 Extent: 3pp