It’s a very lightweight badge with a KdF (Kraft durch Freude) Wagen in the center, a Swastika inside a cogwheel on the top and the lettering of „GRUNDSTEINLEGUNG DES VOLKSWAGENWERKES MAI 1938“ in the bottom. This special badge was given to the attendees of the Cornerstone Ceremony in Fallersleben (stadt des KdF Wagens) on May …