Very unlikely there are any markings, These types of chandeliers were more popular in the mid century. As an electrician we have installed a few of these. They are more costly if all the original "stuff" is still there. We recently installed a fixture similar to this in a huge closet.

Not antique....but whoever described them should have said "antique style". You have already said you don't like them....but I will add my "ewww!" to that! They are some sort of messed up modern attempt at "elegant" and "traditional" and missed the mark!

Thanks. The shade on the first is very thick and etched. It's not opalescent - it's a consistant thick opaque white. The switch looks like this. There are four light bulbs - if you push the button once one light bulb goes on, then push it again - the second, the push a third time and the remaining two light up. The wires on that one are OLD! We have this same switch upstairs in two other rooms but the switches for the other two lamps are updated. The second lamp - the one with the wallpaper in the background is kind of opalescent. It's a much thinner wavy glass and makes the bulb look sun/moon like. I tried to capture that in the picture but it's hard. The wallpaper is lovely and in good shape. It's newer - I have a scrap and the label from a box a found in the basement. It's William Morris Fruit 8048/2

Sadly ‘brown’ furniture is out of vogue, and this piece being factory made doesn’t have much intrinsic value. Few hundred dollars if you are lucky. I’m not trying to be mean, I love traditional brown furniture.