Canomo 10 Inch Antique Lamp Harp Lamp Shade Holder with Light Base and Separable Ball Lamp Finial for Table and Floor Lamps (Antique Brass) : Amazon.ca: Tools & Home Improvement
3-1/4 Fitter, Cast Brass Lamp Shade Holder, tap 1/8F center hole. Antique Brass Finish 10771A | B&P Lamp Supply
4 Fitter, Brass Lamp Shade Holder, 1-1/4 tall, has 7/16 Center Hole that Slips 1/8IP. Antique Brass Finish 10712A | B&P Lamp Supply