Matched Set of Berlin Iron BraceletsMatched set of Berlin iron bracelets. The bracelet features cameo claps and coiled iron links. Circa 1810. The popularity of iron and steel jewelry is considered a result of wartime political and social climates. Although its unique style had an enduring appeal and was worn as mourning jewelry well into the 19th century. Cast Iron jewelry was developed in Germany in 1806 it became the symbol of Prussian patriotism and resistance to Napoleon I in the