Como se llama este signo

To make an etching the artist first coats the entire printing plate with an acid-resistant substance called a made from beeswax, asphalt, and other material. the artist then draws on the coated plate with an etching needle exposing the metal. next the plate is dipped in the plate is removed, the waxy coating removed, and the plate is cleaned, inked and printed.

What convetion did chardin and delacroix use in the painting grace before meal and liberty leading the people to give the artworks a sense of harmony and stability?

Islamic lluminated manuscripts often preserved knowledge from which area of the world