8 Pieces Lamp Shade Ring Collar Lamp Ring for Shade, Black and White Replacement Adapter Ring, Retainer Ring for E26 Light Socket with Diameter 1-1/2 Inches (39 mm) for Lamp Holder Fixture :
New Solid Brass #2 Double Ring Lamp Collar for #2 burners, 1 3/16" Top I.D. #012 | eBay
Sebastian Herkner's Collar Lamp pairs glass with aluminium
Collar Table Lamp at allmine.com
Bronze Swan Collar Lamp Art Deco / Art Nouveau. Loetz Crystal - Etsy Australia