The bookbindings that can definitely be assigned to Siberch are at present few in number. He used one fine roll divided into four rectangular compartments, containing a pomegranate, a turretted gateway with portcullis, a Tudor rose, and three fleurs-de-lys, all surmounted by a royal crown and within canopied archways. Below the fleurs-de-lys are his initials. This is a purely English design, and the tool was no doubt made for him after his arrival in Cambridge. Immediately Siberch gave up work, about 1523-24, the tool passed to Speryng, who mutilated it, so that we know fairly well the period during which it was used when undamaged. Its use in conjunction with other tools enables more of Siberch’s material to be identified. In the University Library is a copy of the _Epistolæ_ of Paulinus, bishop of Nola, printed at Paris in 1516, whose binding is impressed with two well-executed panel stamps separated from each other by this roll. On one is depicted St Roche tended by an angel for the plague and a dog bringing him food, on the other St John Baptist, standing on a mound and preaching to four persons seated below him. These two saints were popular subjects for binding panels, and a number of varieties, mostly copied one from another, are known, but this particular pair are especially well designed and engraved, and were chosen by Dibdin to reproduce in his _Bibliographical Decameron_. On a folio in the library of Clare College, Siberch’s signed roll is found used with another roll or band containing figures of seven peasants, one piping, the rest dancing with hands joined, a very favourite design with Netherlandish binders. The two panel stamps and this second roll are all foreign in appearance, and were no doubt brought by Siberch from abroad. After he gave up work they remained in England. I have a work of Erasmus, printed in 1532, certainly bound in this country, which has the two panels on the binding, while the roll with dancing figures occurs on a binding in St Paul’s Cathedral Library, lined with waste leaves of an Almanac for 1544. It is not improbable that Siberch had other panels, for we find, soon after he ceased to bind, stamps which were certainly his used in conjunction with others exactly similar in style. I saw lately a work of Erasmus, dated 1524, on which this St Roche panel was used, and with it was a panel with St Michael, and these two occur together elsewhere. One point, however, must certainly be noticed. The one panel binding that we can with certainty attribute to Siberch has three bands on the back, as was usual in the case of English bindings. Every other binding with his stamps which I have seen has four bands, and a binder would be most unlikely to change his habits on such a point.