1. IOR/L/PS/10/778/1 Reference (shelfmark): IOR/L/PS/10/778/1 Title: File 5692/1918 Pt 2 Northern Frontier: exploration of Karakoram mountains; proposed Filippi expedition; proposed exploration of Oprang Valley by Lt Col Wood and party Collection Area: India Office Records and Private Papers Languages: English Date Range: 1920-1927 Extent: 1 file / part file
2. IOR/L/PS/10/778/2 Reference (shelfmark): IOR/L/PS/10/778/2 Title: File 5692/1918 Pt 3 Northern Frontier: exploration of Mt Everest; Royal Geographical Society's expedition 1924 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1923-1927 Extent: 1 file / part file
3. IOR/L/PS/10/778/3 Reference (shelfmark): IOR/L/PS/10/778/3 Title: File 5692/1918 Pt 4 Northern Frontier: Mt Everest expeditions; press arrangements Collection Area: India Office Records and Private Papers Languages: English Date Range: 1921-1924 Extent: 1 file / part file