[316] Florence.
[317] Imperial Gallery, Vienna.
[318] Museum, Rouen.
[319] Alte Pinakothek, Munich.
[320] Kaiser Friedrich Museum, Berlin.
[321] The ‘Chigi’ Madonna, Collection Gardener, Boston.
[322] W. Menzel, Christliche Symbolik.
[323] Museum. Colmar.
[324] German Museum, Nüremburg.
[325] Kunsthalle, Karlsruhe.