The first etchings were produced around the year 1500 in Europe and today, after more than 500 years, has hardly changed the manufacturing process. At the beginning an acid-resistant layer is applied on the copper plate. All designs are carved mirrored into the acid-resistant layer. Needle made of steel, roulette and moulette can be used for this. After finishing the design the copper plate is placed in an acid bath, where the acid etches the incised areas. Depending on the time of the acid bath, the lines become stronger or weaker, it is a very delicate work. The light-dark contrast in the image therefore depends on the duration of the acid bath. After that printing ink is applied to the surface of the copper plate and the ink which was put too much on the plate need to be wiped off by hand. Now the printing plate together with the paper are pulled through the printing machine, around 15 tons of weight are applied to the plate and each image is printed individually. The entire production process of etching is done by hands and a long experience and a high skill of the artist is asked for the success of a beautiful etching.