Iron is one of the elements undoubtedly known to the ancient world. It has been worked, or wrought, for millennia. However, iron objects of great age are much rarer than objects made of gold or silver due to the ease with which iron corrodes. The technology developed slowly, and even after the discovery of smelting it took many centuries for it to replace bronze as the metal of choice for tools and weapons. Reference: Wikipedia
Below are some examples and price guides of Art Deco iron items including a pair of Sabino candle lamps and a fire basket.