A striking pair of Loetz Vases rewired as lamps. 

Technique 226 in rare silver-silver blue and yellow-green opalescent glass. c. 1921

Vase - 10" by 5.5" at opening.
11" high with base.

Excellent working condition.  Twist on/off switch at base.

Similar works are in the Passauer Glasmuseum, et al. 

Additional product from the Loetz Witwe glassworks is available here.