This is one of the most rare habits of copper: thick ropey wire copper. The style is characteristic of the Osceola Mine in the late 1800s and early 1900s, and this is an exemplary specimen because it has both robust wires AND displays aesthetically overall. It is a solid specimen of copper ingrown with datolite matrix. This is also from a museum collection, though we are unsure where now. It is the finest example of this style that I personally have seen for sale in my time as a dealer over 20 years, though I know of two other great ones which sold over that time (not publicly). In any case, it is certainly as good as you can reasonably expect for the size, and has excellent aesthetics that surely must make it one of the better surviving examples of this style. Comes with custom lucite display base.