JEB4833183 Portrait of Emir Abd El-Kader (El Kader) (1808-1883), writer, poet, philosopher, military resistance and politician, founder of the Algerian state. Photography Mayer and Pierson, 19th century. Private collection.; (add.info.: Portrait of Emir Abd El-Kader (El Kader) (1808-1883), writer, poet, philosopher, military resistance and politician, founder of the Algerian state. Photography Mayer and Pierson, 19th century. Private collection.); ?? Jean Bernard; it is possible that some works by this artist may be protected by third party rights in some territories.