NSDAP Reichsbund der Kinderreichen membership badge - with makers mark MK to reverse
Condition report: (2) Good
Reichsbund der Kinderreichen (RdK) or Reich's Union of Large Families, was one of the most important pronatalist groups founded in Germany after World War I. To qualify as a member of this league a family should have at least four children. Widows were also admitted.