4 or 2 1/4 Fitter Gas Shade Solid Brass Glass Lamp - Etsy
4 Inch Fitter Antique Brass Finish Cast Brass Lamp Shade Holder, Tap 1/8F Center Hole (10772A) - Antique Lamp Supply - Quality Lamp Parts Since 1952
2-1/4 Inch Fitter Antique Brass Finish Spun Brass Lamp Shade Holder, 7/8 Inch Tall (10699A) - Antique Lamp Supply - Quality Lamp Parts Since 1952
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2-3/4 Inch Fitter Antique Brass Finish Stamped Steel Lamp Shade Holder with Set Screws and Vent Holes (10743A) - Antique Lamp Supply - Quality Lamp Parts Since 1952