1. IOR/Z/E/4/46/C57 Reference (shelfmark): IOR/Z/E/4/46/C57 Title: Campbell, Capt. John, 21st. N.I., Salt, suggestion respecting improvement in manufacture of, in Southern India to be communicated to Collectors of Maritime districts Collection Area: India Office Records and Private Papers Languages: English Date Range: 1842-1845 Extent: 1 entry