METHOD OF TRANSFERRING PAINTINGS FROM WALLS AND PANELS TO CANVASS.
According to Lanzi, Antonio Contri discovered a valuable process, by means of which he was enabled to transfer fresco paintings from walls to canvass, without the least injury to the work, and thus preserved many valuable paintings by the great masters, which obtained him wide celebrity and profitable employment. For this purpose, he spread upon a piece of canvass of the size of the painting to be transferred, a composition of glue or bitumen, and placed it upon the picture. When this was sufficiently dry, he beat the wall carefully with a mallet, cut the plaster around it, and applied to the canvass a wooden frame, well propped, to sustain it, and then, after a few days, cautiously removed the canvass, which brought the painting with it; and having extended it upon a smooth table he applied to the back of it another canvass prepared with a more adhesive composition than the former. After a few days, he examined the two pieces of canvass, detached the first by means of warm water, which left the whole painting upon the second as it was originally upon the wall.
Contri was born at Ferrara about 1660, and died in 1732. Palmaroli, an Italian painter of the present century, rendered his name famous, and conferred a great benefit on art by his skill in transferring to canvass some of the frescos and other works of the great masters. In 1811 he transferred the famous fresco of the Descent from the Cross by Daniello da Volterra (erroneously said, as related above, to have been the first effort of the kind), which gained him immense reputation. He was employed to restore a great number of works at Rome, and in other places. He was invited to Germany, where, among other works, he transferred the Madonna di San Sisto, by Raffaelle, from the original panel, which was worm-eaten and decayed, and thus preserved one of the most famous works of that prince of painters. At the present time, this art is practised with success in various European cities, particularly in London and Paris.