Craquelure (French: craquelé, Italian: crettatura) - this is a special and unique structure of small cracks on the surface of the materials appearing either as part of the aging process, or a special form in a process of creating works of art.
This term is often found in tempera and oil painting, and is a sign of the age of the product, helping to detect counterfeit works of art, as craquelure is the "authenticity of the signature." There are various so-called French, Italian, Flemish, English and Dutch "styles" cracelures related to differences in the typical methods used by artists. Distinctiveness of these styles has been largely confirmed by various studies.
New icon. Without cracelures.