1. IOR/E/1/69 ff. 206-208v Reference (shelfmark): IOR/E/1/69 ff. 206-208v Title: Letters 143-144 Francis Baring in London to the Court offering his opinions on Mr Prinsep's proposal for working a copper mine in Bengal. Collection Area: India Office Records and Private Papers Languages: English Date Range: 7 Nov 1781 Extent: 1 letter