Catalogue: Brian Haughton Antiques. 2012 A Sense of Pleasure.
• Similarly modeled Wedgwood creamware eagle on rocky base: p. 51, no. 32, noting marked Wedgwood example at Temple Newsam, 1765-70Book: Grigsby, Leslie B. 1990 The Henry H. Weldon Collection: English Pottery, Stoneware and Earthenware 1650-1800.
• Similarly modeled Wedgwood creamware eagle on rocky base: p. 51, no. 32, 1780-1805, with lower edge socketed, implying it fit into another ceramic piece.