BERLIN 1920 -- DEUTSCHER SCHACHBUND. Der 20. Kongress Deutschen Schachbundes in Berlin 1920, [ed. E. Post], Leipzig, Hans Hedewig, [n.d.], 8°, plate, diagrams, contemporary half cloth; and 5 other vols. covering the 21st to the 25th Congress (1921-27), similarly bound. (6)

细节

BERLIN 1920 -- DEUTSCHER SCHACHBUND. Der 20. Kongress Deutschen Schachbundes in Berlin 1920, [ed. E. Post], Leipzig, Hans Hedewig, [n.d.], 8°, plate, diagrams, contemporary half cloth; and 5 other vols. covering the 21st to the 25th Congress (1921-27), similarly bound. (6)