Soldering from outside. The lamp is still on the mold.
 
 

The lamp shade has been seperated from the lamp mold and this picture below shows it from inside.

There is a reinforcement wire to be seen, which follows the seams ecaxtly. So it Isn`t visible from outside, when the lamp is lit.

This lampshade will have 5 reinforcements beginning at upper aperture, ending at lower aperture.

1 circumferent reinforcement will be installed in a few inches distance from lower end.