Scarce and interesting membership pin for the RDK organization. Very nice, high quality enamel with the red showing that nice pigskin pattern beneath the red field. Reichsbund der Kinderreichen was an organization encouraging large families and translates to something like the Reich's Organization for Families Rich in Children. The pin shows a strong looking eagle with wings protecting five young fledglings. Maker marked and Ges Gesch. Cool pin.