Observations upon the export trade of tin and copper to India, with reference to the expected renewal of the honorable East India Company's charter : and also upon the present state of the tin trade with Europe and its colonies, Africa and America
With: Correspondence of George Unwin, Esq. &c. &c. : with a view of opening a market for Cornish tin and copper in Persia. Truro : Flindell, printer, 1810.