What is an original lithograph?

An original lithograph is a print made by way of a specific printing method (one of the most commonly used methods in the 20th and 21st centuries). With respect to lithography, the process begins by drawing on or painting on a stone surface with an oil-based substance, such as a greasy crayon or tusche (an oily wash). The stone is then covered with water, which is repelled by the oily areas. Oil-based ink is then applied to the wet stone, adhering only to the oily image. The stone is then covered with a sheet of paper and run through a press.