fret Observatory Dislike 10mm threaded lamp holder private evidence until now
ES | E27 | Edison Screw Old English Threaded Lampholder with 10mm Base Fixing
Old bronze bulb holder BC B22 earthed threaded skirt and shade ring
1x 1/2" Male to 10mm Female Brass Lamp Holder M10 Thread Reducer Bush Adaptor | eBay
Art Deco Emporium E27 Lamp Holder (Light Bulb Holder) in Black Bakelite with Shade Ring and 10mm Threaded Entry for Table Light Fittings, Black Ceiling Light Fitting or Pendant Light Fitting :
BRASS LAMP HOLDER TABLE LAMP KIT B22 BC BAYONET CAP 10mm THREADED ROD & NUTS | eBay
05987 Pull Chain Brass ES Lampholder with 10mm Entry – The Lamp Company
Edison Screw Es E27 Light Bulb Lamp Holder Pendant Socket, Practical Lamp Pendant Socket With Shade Ring And 10mm Threaded Entry(white) 10pcs | Fruugo NZ