Tracked down a pdf of the Soviet edition of Labour in Ireland (the title used is Rabočij Klass v Istorii Irlandii. Otvoevanie Irlandii – “Labour in Irish History. The Re-Conquest of Ireland.”) It was published in 1969 by Progress Publishers, with an introduction by Mícheál Ó Ríordáin.
The translation is by Artemy D. Kolpakov, who also wrote an appraisal of Connolly – part of which appears in volume I of Collected Works (New Books, 1987), 508-512.
Conor McCabe 