Visual learning aid by Dr. Lips, Bauplane des Tierreiches, which translates to 'Blueprint of the animal kingdom'.
Published by Gerhard Gamble, Berlin.
It is illustrated by H.Bogen on paper/linen and was used in German schools. Versions were editied for use in many other European countries.
This poster, is number 8 and shows the vertebrae of an amphibious mammal.
 
Dimensions: width 114 x height 140 (including brackets).