Picture framing

thumb|330px|Triptych of the The Elevation of the Cross (Rubens)|Raising of the Cross, Rubens, 1610–11, Antwerp Cathedral A triptych ( ) is a work of art (usually a panel painting) that is divided into three sections, or three carved panels that are hinged together and can be folded shut or displayed open. It is therefore a type of polyptych, the term for all multi-panel works. The middle panel is typically the largest and flanked by two smaller related works, although there are triptychs of equal-sized panels. The form can also be used for pendant jewelry.

thumb|Ivory consular diptych of Areobindus, [[Byzantium, 506 AD, Louvre]] thumbnail|Wax tablet and a Roman [[stylus]] thumb|Barberini Ivory, [[Constantinople, 6th century, Louvre]]

decorative edging for a picture, such as a painting or photograph

thumb|right|Gilded frame ready for burnishing (metal)|burnishing with an [[agate stone tool]] thumb|right|Application of gold leaf to a reproduction of a 15th-century panel painting Gilding is a decorative technique for applying a very thin coating of gold over solid surfaces such as metal (most common), wood, porcelain, or stone. A gilded object is also described as "gilt". Where metal is gilded, the metal below was traditionally silver in the West, to make silver-gilt (or vermeil) objects, but gilt-bronze is commonly used in China, and also called ormolu if it is Western. Methods of gilding

thumb|300px|Opened view of the Ghent Altarpiece: [[Jan van Eyck (1432). There is a different view when the wings are closed.]] thumb|The closed view, back panels.

thin, flat piece of paper-based material included within a picture frame

picture frame that displays digital photos

thumb|Icon of [[Our Lady of Kazan covered with a gilded silver riza.]] thumb|Riza removed from its icon.

wooden frame to hold canvas taut, as for a painting surface

thumb|White lead pastiglia on an Italian casket, late 15th century, with [[Marcus Curtius at left, British Museum.]] thumb|The casket made for Cardinal Bernardo Clesio, whose arms allow it to be dated to 1530–38, [[V&A]] thumb|Portrait of a Man with a Medal of Cosimo the Elder, [[Botticelli, with pastiglia medal]] Pastiglia , an Italian term meaning "pastework", is low relief decoration, normally modelled in gesso or white lead, applied to build up a surface that may then be gilded or painted, or left plain. The technique was used in a variety of ways in Italy during the Renaissance. The term