Book: Archer, Michael. 1997 Delftware: The Tin-glazed Earthenware of the British Isles, a Catalogue of the Collection in the Victoria and Albert Museum.
• Similar tile: p. 523, no. N.487, c. 1770-1780Book: Ray, Anthony. 1994 Liverpool Printed Tiles.
• Similar tile: p. 47, no. D8-5, with engraved source identified as Croxall's Aesop's Fable XIVBook: Ray, Anthony. 1973 English Delftware Tiles.
• Similar tile: pp. 271-2, no. 756, stating that when the ass treated the boar too familiarly, the boar nearly attacked, but "refrained, considering him too base a creature."Book: Volk, Joyce Geary. 2006 The Warner House: A Rich and Colorful History.
• Red-printed tiles with (mostly) European scenes in Warner sitting room fireplace, Portsmouth NH: pp. 39-40, fig. 3.8, noting probably installed circa 1760.