Article: Grigsby, Leslie B. 01//2020 Winterthur Primer: Fit for a King (or Queen) Ceramics and the British Monarchy. Antiques and Fine Art. XIX (1): 156-157.
• Published: p. 157, no. 1Book: Pugh, P. D. Gordon. 1987 Staffordshire Portrait Figures of the Victorian Era.
• Similar figure, perhaps from same mold: pp. E361-62, pl. 1, flatback of King John signing Magna Carta.Book: Harding, Adrian & Harding, Nicholas. 1998 Victorian Staffordshire Figures 1835-1875. 1.
• Similar figure: p. 287, fig. 1048