This late 19th century chain is made using niello, a dark metallic alloy of sulfur with silver and/or copper that's used to fill in etches and grooves in metal (typically silver). Sometimes misnamed “black enamel,” niello technique spread throughout Europe during the late Iron Age and is common in Anglo-Saxon, Celtic, and other types of Early Medieval jewelry. In this unusual chain with teardrop-shaped three dimensional links, stripes were carved in the silver links which alternate with rose gold. An oversize spring ring and dog clip give you extra versatility to adjust the chain’s length and placement of charms.