...Problems of History and Theory'. Produced by the Institute of the International Working-Class Movement. Published by Progress Publishers, Moscow, 1980 -1984. The first four volumes of this seven-volume edition. All hardback, with dustjackets. Volume 1: 'The Origins of the Proletariat and its Evolution as a Revolutionary Class': Internally near fine, light foxing to top and front edges, the dustjacket has some minor creases and a few small tears to the edges (two discreetly repaired on the rear with clear tape); Volume 2: 'The Working-Class Movement in the Period of Transition to Imperialism (1871-1904)': Light foxing to top and front edges, browning to endpapers, corners a little bumped, internally near fine; dustjacket has one tear to the top edge (repaired); Volume 3: 'Revolutionary Battles of the Early 20th Century': The dustjacket has one small tear to the top edge at the back, and a few creases; otherwise book and jacket are near fine. Volume 4: 'The Socialist Revolution in Russia and the International Working Class (1917-1023)': The book and dustjacket are in near-fine condition. These four books are quite heavy - please enquire about postage.