Book: Pugh, P. D. Gordon. 1987 Staffordshire Portrait Figures of the Victorian Era.
• Similar pair figures and design source: p. A149, figs. 159-60. See pl. 54 A for The Young Cavalier, John Cochran's engraving after painting by William Salter (1804-75); source of prince.Book: Harding, Adrian & Harding, Nicholas. 1998 Victorian Staffordshire Figures 1835-1875. 1.
• Similar pair: p. 185, figs. 580/581, much like Winterthur's, and noting above design source. Says "decorated in the manner of Thomas Parr"