Model of a Winkel-type shelter. 3D reproduction, made from injected synthetic material. Access gangways made from real wood and synthetic material. Thanks to their sturdiness and the 3.50 m thick walls, some of these buildings are still standing, more than 60 years after the end of the last world war, in the towns of Darmstadt, Hannover and Stuttgart. Construction kit. Dimensions: height approx. 212 mm, diameter approx. 115 mm.