| http://www.w3.org/ns/prov#value | - A majority of the papers pertain to the China trade, 1805-1822, and to William Read, a merchant of Philadelphia, who represented the firms of Willing and Francis and Willing and Cuwen, some outgoing correspondence of Willings and Francis, invoices of goods shipped, and other financial records, documenting trade in opium and tea, including probably the first recorded arrival of an American opium sh
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