Lamp of the months
The columns shaft of this inimitable lamp is all around made out of the strips of a black, white and clear spectrum Baroque glass plate.
This glass is very hard to work with, because when you melt all 3 glass groups together they vary in size and thickness. The black flare in the middle of the orange agate plate and the black/white spiral pattern lead me to the name of the object since it is a very crazy and complicated mixture.
The link above leads to an American site on which you can see videos of so called tornado chasers .