WOLFF, PAUL (1887-1951) Arbeit! H. Bechhold Verlag, Frankfurt, 1937. In-4 (27.5 x 24 cm). German first edition, complete with separate 12-page technical booklet. 29 pp. of text. Introduction by Paul Ehrhardt. 200 photographs, superbly reproduced in gravure. Publisher's hardback in handsome illustrated dust jacket. Note that the booklet and the first few pages of text have some foxing around the edges; all the photographic pages are otherwise in perfect condition.