"A historically important and valuable specimen. Operated from from the 1620’s until the mid-1950’s, the mines of the Kongsberg area in Norway are widely acknowledged to have produced the world’s finest native silver specimens. The Kongsberg mines occasionally yielded ""sculptural"" twisted masses of natural, elongated wire silver crystals. Kongsberg wire silver specimens, such as this superb piece, are treasured classics in the world's leading Natural History Museums and advanced private collections. This specimen is among the finest in private hands. It is an extremely ""sculptural"" cluster of natural wire silver crystals having a rich, natural silver-metallic patina. A fantastic piece for the advanced mineral collector. "