Very rare DIE NATIONAL-SOZIALISTISCHEN-MUSTERBETRIEBE 1937-38 BAND 1 (The National Socialist Model Firms 1937-38 Part 1).With 156 spatial images by Prof. Heinrich Hoffmann, 117 pages and stereo viewer.Published by Hans Biallas. Published in 1938 by Gauverlag Bayerische Ostmark G.m.b.H., Bayreuth in collaboration with Raumbildverlag Otto Schönstein.Binding: Hardcover