Portrait of an Artist....by an Artist

Lucian Freud (b. 1922) "Francis Bacon" oil and charcoal on canvas
14 x 14in. (35.5 x 35.5cm.) Painted in 1956-57

Source

source Lucian Freud and friend Francis Bacon, 1953

http://www.guardian.co.uk/education/2001/jun/23/arts.highereducation