The door into the sacristy on the south side of the ambulatory is decorated with a rich and interesting Gothic canopy of the earliest period of the Cathedral. This sculpture was designed and partly executed by Hans von Fernach in 1393 and finished soon after by an Italian, Porrino de’ Grassi, who doubtless did the graceful subject reliefs, while the rude, vivacious little figures, from the Gospel story, in the decorative border round, are evidently by a hand of different nationality, that of the German Hans. Within the sacristy there is a richly-sculptured Gothic arch over the lavabo, enshrining a relief of Christ and the Samaritan Woman, signed by the sculptor, Giacomo da Campione.[5] Also a statue of Christ at the Column, by Cristoforo Solari, a heavy and flaccid work. Footnote 5: See Malaguzzi Valeri, op. cit. vol. i. p. 56. The famous treasure of the Cathedral is kept in this sacristy. Here are great seicento figures of St. Ambrogio and S. Carlo in solid silver, and other silver objects of the same period, precious in material but artistically of little account. In a small case there are, however, some veritable treasures. The covers of a Book of the Gospels, presented to the Cathedral by Ariberto, beautiful examples of the goldsmith’s art in the Romanesque period, adorned with chiselled reliefs, with enamel, gold filigree work and precious stones. On one is represented Christ between the Virgin and St. John, with Ariberto presenting the book to her, and below, St. Ambrogio between SS. Protasio and Gervasio. The work shows the Byzantine influence, which was still supreme in this branch of art in the eleventh century. A pastoral staff of silver gilt, ornamented with enamel, is of the same period. Two ivory diptychs, one of very early date, carved with the freedom and grace still surviving in Greek artists in the fourth and fifth centuries; the other of heavy and debased Lombard workmanship of the ninth century must be noticed, and also a little ivory vessel carved with figures of the Virgin and Evangelists, tenth century Lombard work. Among many precious mediæval and Renaissance objects there is a golden pax, with a finely carved Deposition between columns of lapis-lazuli, and a group of angels above, with the arms of the donor, Pius IV. This is attributed, but erroneously, to Caradosso. The magnificent tapestries in the possession of the Cathedral were shown at the Great Exhibition of 1906, and several of them perished in the fire which occurred on that occasion.