2 volumes in slipcase. Profusely illustrated with mounted color plates, along with other b/w figures. Numbered and un-numbered leaves. Large square 4tos, black-stamped cream cloth, d.w., pictorial cloth slipcase. Koln: Verlag M. DuMont Schauberg, (1961-1966). First edition. A fine set in fine dustwrappers and slipcase.