The star of the order of the Royal Crown is a silver basis in the form of a quadrangular stars with small additional rays. In the center of the star there is a round medallion, covered with gold and purple enamel. The center medallion is embossed image of a crown. Circle the enamel insets-gold plated inscription "Gott mit uns". "God is with us!"). Reverse slightly concave. Mount - vertical pin.
Historical note: http://www.ehrenzeichen-orden.de/deutsche-staaten/koniglicher-kronen-orden-bruststern-zur-2-klasse-1871-1918.html