Three cartoons, The Phoque Rouge Model

Three cartoons, The Phoque Rouge Model; The Cool-Edge Tube; Calibrated Grid; by George Morrow. Pen and ink. 1919. 15 x 23cm and smaller. As published in: A Catalogue of Next-Ray Tubes perpetrated by the All-lies Ever-Needy Corporation [ie Cuthbert Andrews, London, 1919]