13 out 1445 ano - Etching is a process invented by Daniel Hopfer in Germany, the process involves a wax covered metal plate that would have a image carved into the wax, this was then placed into acid removing the lines that where exposed. A artist tat used this technique after Hopfer was a man called Ibraham El-Salahi, most of his prints tend to be in black and white cause this method only limits you to few colours therefore most of his works have this lack of colour. (Linha do tempo)