Clear Spiral Twist to Blue Top Ruffled Art Glass Electric Lamp Shade ! Ca. 1905.
Hand Finished Flange Lip Fitter is exactly 2 1/8 inch for a set screw fitter.
Stands 4 1/2 inches High, and ruffles spread out to 6 inches at opening.
Weighs 8.0 Ounces.
Condition : Excellent with No physical glass damage !
Last photo shows shade over a 60 watt bulb.