Van Eyck, Jan (c.1390-1441) The Annunciation Diptych c.1433–1435 Oil on panel, left wing: 38.8 x 23.2 cm; right wing: 39 x 24 cm Museo Thyssen-Bornemisza, Madrid This diptych is an outstanding example of grisaille painting. Here, van Eyck deliberately rejects the…