1. IOR/V/27/420/67 Reference (shelfmark): IOR/V/27/420/67 Title: Hunter, J de Graaff, Auxiliary tables. 5th edition. Part 4: Geodetic tables (A) triangulation tables. Dehra Dun, 1931 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931 Extent: 1 volume