Iron Cross 1st class by Wilhelm Deumer, Ludenscheid. Three piece construction with magnetic, iron core. Maker marked under the catch with the LDO code of Deumer "L/11". Very good to excellent condition with light signs of age. very nice polished frame still intact. No repairs, no damage. Complete in its original iron cross box, typical for Deumer. Box in very good condition. 
Top L/11 set.