Figure 10 Caudle or posset pot, London, ca. 1640. Tin-glazed earthenware. H. 5 1/2". (Noël Hume Collection; photo, Gavin Ashworth.) The importance of a ceramics collection depends less on what it cost than on what its pieces have to say about themselves and the times in which they were made and used (see figs. 11 and 12).