Book: Schaap, Ella B. 1994 Bloemen op tegels in de Gouden Eeuw Van prent tegel. and: Dutch Floral Tiles in the Golden Age and their Botanical Printes.
• Polychrome tiles with "double snake's heads" flowers and same borders and corners: p. 100, pl. 47, made in Makkum or Harlingen, Friesland, 1640-70Book: Schaap, Ella B. 1984 Dutch Tiles in the Philadelphia Museum of Art.
• Polychrome tiles with "double snake's heads" flowers and same borders and corners: pp. 88-89, nos. 90-91, 1640-75