Mart can very well be right on the plumb bobber thingy
Ph...can you post a pic of it looking from the other direction. If it is hollow at the small end...very much for a fixture. If not...a plumb bob! Right Bob?!
Agree about wiring the wall sconce!
Thought I would post a set of swing arms that are original coloring. I have quite a few sets myself, some gold/brass color, some green and gold/brass and some red/green/brass! Really like them!!!
Mart have also seen pieces like the last pics not only used for lighting....but used for decorating walls, woodwork and part of pullbacks for drapery!!