East-German Mid-Century Circulatory Systems Diagram

Volk und Wissen Volkseigener Verlag Berlin / East-Germany

Mid-Century, Soviet-Era, East-German school wall chart titled "Entwicklung der Blutkreisläufe" (Evolution of Blood Circulation) that illustrates the evolutionary development of circulatory systems across different species, from fish to mammals. Manufactured by Volk und Wissen Volkseigener Verlag Berlin for the Akademie Der Pädagogischen Wissenschaften Der DDR. Designed for classroom instruction. In original condition with some age-appropriate wear and signs of usage.