Falkenstein lamps that need more info

Hi. This is my first time posting. I just stumbled upon this website. I own a consignment store and lots of things come through my door and I've never looked anything up. Today these lamps came in. They are solid copper from the looks of them. Very heavy. They have flake stein on the bottom plus a four digit number. I tried researching online but could not find any lamps anywhere close to these for mostly all I found were lamps made of glass with parts of brass or metal by Falkenstein. Any help on info for these lamps or if there is a website I can look it up by number would be greatly appreciated. Thank you very much

Lori