Fig. 3From: Johannes Vermeer’s Mistress and Maid: new discoveries cast light on changes to the composition and the discoloration of some paint passagesJohannes Vermeer (1632–1675), Mistress and Maid, 1666–1667. The Frick Collection, New York. The arrows show the approximate locations where microsamples were taken from (a). Ca (b); Pb (c), Fe (d), Cu (e), and K (f) distribution maps acquired by MA-XRFBack to article page