Stockholm: P.A. Norstedt & Söner, nd . First edition. single sheet. Original mid-twentieth century lithograph on paper; untrimmed showing printer's registration marks. (29 5/8 x 41 3/8 inches). Very Good condition with edge tears and small printer's ink spill on upper right corner. 'Printed in Sweden' stamped on verso upper right.
A fine large format scientific wall chart showing 18 illustrations of plant microorganisms in microscopic detail. Lithographed and printed by Bengtsons Litografiska A.B. Stockholm. Penciled notation on lower left (OHH53), in all probability identifying the publication date. Very Good. Item #7246