The seams of the lamp shade have been copper-
plated now. This is necessary for the patination.
 

Inside the lamp you can see a reinforcement
wire here. It follows the seams and isn`t
visible  from outside, when the shade is lit.

There are running 6 reinforcement wires
from the upper aperture rim to lower border
rim of the shade. Another reinforcement
is following the circumference of the shade
in a distance of 1-4 inches to the lower
border rim.