R. Riviere Bookseller's ticket in upper left corner of inside front cover reads: "R. Riviere, 24 Union Street, Bath".; Vendor: Plaza Art Galleries
Henry M. Hake, "Pond & Knapton's Imitations of Drawing", Print Collector's Quarterly, IX, 4 (1922), pp. 337-49; Nagler XI.487-.489
Henry M. Hake "Pond's and Knapton's Imitations of Drawings." Print Collector's Quarterly. vol. 9, 1922, pp. 325-50.
Louise Lippincott Selling Art in Georgian London: the Rise of Arthur Pond. Yale University Press, New Haven, CT, 1983.