Hi and welcome.
Lamps are notoriously difficult to id as they tend to be specialist items and not marked in any normal manner - the normal surfaces for adding the mark are often not there. They often have to be finished off differently to other pieces because of accommodating fittings and cables.
That said, we can often recognise certain makers' work.
We'll do what we can for you!
There is plenty of techie help and info about using the board here;
https://www.glassmessages.com/index.php/board,22.0.htmlThere are two topics there on posting images, you'll just need to find the right bits for the sort of computery things you use.