In the Sacristy of the Canons may be seen some beautiful illuminated books, the most precious of which is the famous Missal of Gian Galeazzo Visconte, of the late fourteenth century, which commemorates the coronation of that prince as first Duke of Milan. It is exquisitely illuminated, in clear brilliant colour, by a Lombard miniaturist, Annovello da Imbonate. The front page depicts the scene of the coronation; a beautiful composition in which the Duke appears kneeling in crimson robe and ermine at the feet of the imperial legate, with his subjects gathered below. In the ornamental border the emblems of the Visconti are introduced; the snake, the dog chained beneath a tree, the dove with the motto, _A bon droit_, etc. There are other pages fully miniatured with scenes of Gian Galeazzo’s career. Among several Corali of the late fifteenth or early sixteenth century, there are two with very fine and delicate miniatures, attributed to Borgognone and suggestive of that painter in the sentiment and pose of the figures. The _Teca degli Innocenti_, a silver casket of the late fifteenth century, containing relics of the Innocents, and very elaborately decorated with bas-reliefs of the Massacre, and other New Testament scenes, is kept in the sacristy, and also a silver pax, called Filippo Maria Visconte’s, with a bas-relief of the Dead Christ, of Lombard workmanship; a fifteenth century ostensory, of beautiful Gothic form, and a processional cross, given by S. Carlo to the church, but of earlier date.