Family portrait. Portrait of the family of Vunnerius Keramus. ca. AD 250. The portrait was engraved and painted on sheets of gold leaf, then cut out and sealed between two layers of glass (later inserted as the central jewel in a decorated 7 cent. cross [shown here] by its Christian owner). Diameter 2.375” (6 cm). Museo Civico dell’Eta Cristiana, Brescia.