Iron cross 1st class a screwback by Hymmen & Co, Lüdenscheid. Three piece construction with magnetic, iron core. Maker marked with the LDO code of Hymmen "L/53" on the reverse. Very good to excellent condition with minor signs of age. The cross comes in its rare matching "L/53" marked "Halbetui". Case in good condition. 
Premium L/53 set.