A UK made solid brass B22 standard bayonet bulb holder with screw in hanging hook.
The bulb holder has a ceramic interior (not plastic like cheap imports) it also has a shade holding ring and earth terminal.
It measures 7.3cms tall and the threaded body is 2.6cms diameter. 2 7/8 inches tall and the threaded body is 1 inch diameter.
Please look in our ebay shop for many more bulb holders, galleries, braided flex and chains.