This was probably an original gas fixture that was
electrified at the Turn of the Century. Usually you
see this light with glass beading that is on order for a
complete restoration. It will have a 6 inch white fringe
on bottom. These were always Dining room Chandeliers
put down close to the table, about 30 inches above.
The three sockets on the top were away to add more light
in the period.