Striated shades of transparent purple and orange cased in colorless soda-lime glass, neon, mercury vapor, radio transmitter; glass is blown and cased, hot-worked. Interlocking looped spirals; large and small 1 1/2 turn spirals that interlock and rest vertically with ends curling upward; ends taper from thin to thick which has been ground flat; sections sit on radio field transmitter that activates enclosed gases; inscribed on broad flat ends of both sections: "Seide".