Maybe. It doesn't look much like his more famous, Deco-styled designs.

Was the shade original? I'd guess it was made as a torchiere. I've linked to a Worthpoint entry that you've no doubt already seen.

Here is a link that might be useful: Worthpoint

The glass shade looks like a replacement. They still make them in that particular shape.

The original glass shades would more likely have been some kind of a bowl shape with a flared top. They made floor lamps that were meant to carry a cloth shade just as your example with the shade sitting on the bowl at least into the end of the 1950s. They often held a mogul base light bulb which is 39mm across the threads unstead of 26mm.

Gorgeous lamp - great find!

I agree that this particular lamp looks somewhat different from Rohde's more familiar deco styled designs, but I can also see some striking similarities. When I first saw this particular lamp, its (for lack of a better term) "stacked finials" at the base of the lamp, rise over 21" off the ground. I've never seen anything quite like it before. It's very unusual! I also think the saturn like design element near the top of the lamp is very deco/industrial age looking. The only other similarly designed lamp that I've ever seen like this one, is the one that I posted at the bottom. It's a M.S.L.C. lamp designed by Gilbert Rohde. I have also learned from a source that in the 30's, Gilbert Rohde designed over 35 different lamps for Mutual Sunset Lamp Co., but many were undocumented. I have a sneaking suspicion that this is one of them. I have seen other M.S.L.C. lamps but they are very "traditional" looking. Unlike this one. Maybe this is going to be one for the history detectives! ;)

I have two of the exact same things except (weird) mine aren't lamps. It's just the bottom part of the lamp with the stone and the brass and on top is a brass finial. ON the bottom it is marked MSLC 3288. Any ideas on that????

Check out this post from last year inquiring about the same MSLC 3288 lamps.

https://www.houzz.com/discussions/5411113/mslc-3288-lamp-classic-forgettable-or-meh

A few other sites that mention the same style number -

https://www.worthpoint.com/worthopedia/early-20th-green-onyx-stone-mutual-495579802

https://www.worthpoint.com/worthopedia/antique-nouveau-table-lamp-light-1829282309