A fantastic Jung Koch Quentell pull-down, roll-up wall chart illustrating entomostraca such as Daphnea and Cyclops (a historical name for a subclass of crustaceans that is no longer used). Published by Hagemann Lehrmittelverlag in Duesseldorf Germany. It was used as educational material in German schools. The print is beautifully illustrated and colorful. The chart rolls up on a wood dowel with metal fastener.
Overall good condition as shown.