7200779 Georgi Plekhanov, Russian Marxist politician and one of the founders of the Social Democratic movement (b/w photo) by Russian Photographer, (20th century); Private Collection; (add.info.: Georgi Plekhanov (1856??918), Russian Marxist politician and one of the founders of the Social Democratic movement. Illustration from Calendar - Thirty Years of the Soviet State 1917-1947 (State Publishing House, Moscow, 1947).); 穢 Look and Learn.