Often referred to as ???RELINING???, it is the application of a second canvas to the back of a painting for stabilization purposes. Source: Julia M. Ehresmann, "The Pocket Dictionary of Art Terms"<br><br>An auxiliary support applied by a conservator to the original support (canvas, etc.) of the painting when the original support no longer has enough strength to carry the weight of the painting. Linings can be constructed from a variety of material, including canvas, fiberglass etc. and may be rigid, semi-rigid or flexible as the need demands. Lining Examples