Plan of a protective system for the extinction of smuggling and the consequent security of the revenue and encouragement of national industry, &c - Walker, Alexander of Dover (W. Batcheller, 1830)
"Sent in M.S. on the 17th of May, 1830.". - Goldsmiths'-Kress no. 26206. - OCLC, 17525261. - Reproduction of original from Goldsmiths' Library, University of London. - Signed: Alexander Walker