This old wire and net piece is known as a day shape or day marker.
Different shapes where hung in combinations to convey messages to other vessels such as under tow or not under command.
Once a sphere, time and use has warped it's shape a little making it completely unique.
Cleverly converted into a pendant light it is wired with a plug, but course it could be hard wired into the ceiling by a qualified electrician if you choose.
A wonderful feature above a dining table, we currently have one other that is very similar that would make a great pair for over a kitchen island.
Measures approx: 65cm x 60cm x 70cm