After going over something with a loupe and not finding a signature one would have to assume they are more likely mass produced and possible at one time had a foil label or a original box. Sometimes it may require to take a item apart to search also, or tear the felt of the bottom, but personnally I never go that far. I know that this offers little help but as you research other items, sometimes you find out about another. Anyway When looking at your pic I noticed something that looks like green art Glass off to the left side
some reason it kept taking my eyes away from the candelabras, guess it is just my glass side coming out
Now you got me more curious