I’m sure you will have pb, it’s the lid off an old jam dish or something similar with hook added. Have you seen dust like that though, obviously I’m not much into dusting!
I like the shape of it.. it looks right? Oh hang spring cleaning ! I think there’s more chance of knocking something over , that’s the trouble with lamps :-)
It a long long way from here in the wilds of Norfolk, one day maybe if I can afford the petrol, the way the price keeps going up i might need to take out a mortgage to fill up the car.
Nice lamp @Jean J and I presume early sixties though the shape of the control cock (XN like) puzzled me at first, though obviously correct.