This lamp shade is created by  Dr. Grotepass-Studios.
It is a 18"  version of the very popular 22" Dragonfly design #1507 of 
Tiffany-Studios New York.

Leaded glass lamp shade
DRAGONFLY
Diameter: 18" (45,7 cm)

Tiffany Bronze Lamp Base:
TELESCOPING 
ROOTBASE #425
Height: 27"- 32“ 
(69-82cm)

The lamp is electrificated
according to US safety
standards. (120 Volts)
It comes with 6 US standard sized turn key lamp sockets.

Other color combinations
and standards of 
electrification are available.