Hi, I recently picked up an advertising lamp for the Royal Ediswan Company. I've spent hours researching the piece and can't find anything about it although I am now well educated about the company. The lamp has a pot metal type base with a large etched glass lightbulb with the Royal Ediswan Logo. It appears that something was attached to the glass at one time as there are several metal rivets in the glass. Rough dimensions are 6" wide at the base and 24" to the top of the glass light bulb. I would guess it's from Great Britain and was made in the 40's-50's. I've attached a pic and any help would be appreciated.
