Two undecorated examples of this form are illustrated by Michael Archer, Delftware in the Fitzwilliam Museum, London, 2013, cat. nos. J.5 -6, p. 316, where the author mentions that they were excavated in London and were probably made there. Other similar examples are illustrated by Michael Archer, Delftware, The Tin-glazed Earthenware of the British Isles, London, 1997, cat. no. J. 13-16 and J. 18, p. 385-386 and in F. H. Garner, English Delftware, London, 1948, fig. 11 A (right).