Brass Lamp Pair

Came into possession of this pair of brass lamps and trying to identify. From what little I know, they look like they could be Stiffel but I've not been able to find any mark anywhere. They haven't been kept in the best condition but seem to be good quality. The shades they came with are all cloth though look not to be Stiffel. Just see LEVITON mark on the socket... If not Stiffel, any ideas on what could they be? I am looking to pass them on and any opinion on value would be welcome!

 

I have seen a number of Stiffel lamps with the same design as yours. Here's a couple:
https://www.rubylane.com/item/79879...ffel-Table-Lamp#mz-expanded-view-595388327490

https://www.worthpoint.com/worthopedia/pair-vintage-stiffel-brass-hollywood-1459883561

There may have been a Stiffel label on the socket at some point that has since fallen off.

 

Thanks @sabre123. My findings have been similar to yours. It seems they probably are, I just wish there was some way to authenticate if I want to sell.