1. IOR/Z/E/4/26/C369 Reference (shelfmark): IOR/Z/E/4/26/C369 Title: Charts and Maps, Gogra River, non-publication of Lieut. Gaskoin's, on account of discrepancies between Trigonometrical Survey and Collection Area: India Office Records and Private Papers Languages: English Date Range: 1855 Extent: 1 entry