Several site I looked at had this mark as 1930 or 40 !! Just because you can`t find another identical to yours has little bearing on the lamp or its value !! Lamps like this were chosen for personal taste and that's how they usually sell !! You can put two lamps out there with both about the same era and similar scenes and one may bring $100. more than the other just because the scene or the shade hit a chord with someone !! Same way you or I would choose a lamp,,we just like it better than the other !! I would say that in todays economy yours would bring about $250. for the pair !!