This weathered, whitewashed cast iron work of art has a designer's touch of rust that makes it appear straight from an old French estate. Chateau Elaine Authentic Iron Urn: Large 80 lbs. Our unparalleled authentic urn causes its lightweight, local garden shop aluminum or plastic cousins to pale in comparison. Our 17th-century cast iron antique replica spans the centuries and is substantial enough to be an heirloom into the next!.