(Eisernes Kreuz II Klasse). Instituted 10 March 1813 by King Friedrich Wilhelm III of Prussia and reinstituted 18 July 1870 by King Wilhelm I. 1870-1871 Issue. An Iron Cross with magnetic iron core, silver frame, black patina, crown on obverse 12 o’clock arm, “1870” on obverse 6 o’clock arm, “W” on obverse centre which stands for Wilhelm, crowned cipher “FW” on reverse 12 o’clock arm, “1813” on reverse 6 o’clock arm, oak branch on reverse centre, unmarked, measuring 42.62 mm (w) x 46.10 mm (h), weighing 17.6 g, on black ribbon with narrow white stripes, very fine.