1. IOR/V/23/1, No 4A Reference (shelfmark): IOR/V/23/1, No 4A Title: [a] Survey of the River Gogra [by Lieut C A Gaskin 1852]. Calcutta: Calcutta Gazette Office, 1854 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1854 Extent: pp. 1-19, map