This may be of interest to some of you. I have taken into care a Monart vase/lamp (non glass shade) for a friend. The fitting is typical of those used on the smaller lamp/vases but different in that it has a switch on the fitting. Strangely when power is applied the top light is on and when the switch is moved both top and bottom light albeit with reduced power. I don't think their is a wiring problem but will investigate shortly
There is also a manufacturers mark but no name on both ends of the fitting, perhaps you can see this on the attached photograph. If not I have attached a representation of it !!!
Does anyone have any thoughts as to the maker
Keith