Stephen Lloyd. Richard & Maria Cosway: Regency Artists of Taste and Fashion. Exh. cat., Scottish National Portrait Gallery. Edinburgh, 1995, pp. 30, 101, 114, no. 18, colorpl. 17, dates it about 1770; calls it a "tour de force" of miniature painting, in which the artist depicts himself as a macaroni or dandy; notes that Cosway is imitating the style of his rival Jeremiah Meyer.
Graham Reynolds with the assistance of Katharine Baetjer. European Miniatures in The Metropolitan Museum of Art. Exh. cat., The Metropolitan Museum of Art. New York, 1996, pp. 11, 13, 131–32, no. 130, ill. on title page (color), colorpl. 130, and ill. p. 131, date it about 1770–75.
Katharine Baetjer. "British Portraits in The Metropolitan Museum of Art." Metropolitan Museum of Art Bulletin 57 (Summer 1999), p. 41, ill. (color).
John Ingamells. National Portrait Gallery: Mid-Georgian Portraits, 1760–1790. London, 2004, p. 124, ill., dates it about 1770.
Stephen Lloyd in Oxford Dictionary of National Biography. Ed. H. C. G. Matthew and Brian Harrison. Vol. 13, Oxford, 2004, p. 558.
Stephen Lloyd. Richard Cosway. London, 2005, p. 40, no. 4, ill. in color opp. p. 1 and p. 41.