Superconductor Rounds (Large and Small Filament) Filament Size:Large Filament 1.83”x3/8” Comes with extra links

Comes with extra links

Vintage Westinghouse light red spun glass pulled directly from an old Westinghouse machine with all original parts and plaques

This material is 1 of a kind and no 2 pieces are exactly the same

These rounds come polished

Amazing one-of-a-kind desk art

Superconductor Rounds (Large and Small Filament) Filament Size:Large Filament 1.83”x3/8” Comes with extra links2 different filament sizes are available in these Superconductor rounds comprised of Niobium and Copper. These rounds are 3 8 thick so they can be used as is or ripped to create thinner, bookmatched slices for bolsters, jewelry, or whatever else you can think of. This material looks much better when etched to create some depth and contrast in the materials. These rounds come polished. Niobium is incorporated into copper for superconductors primarily