All copper no glass. Has mica insert. Three detailed chimney openings on lantern top. Closed bottom with 19" long pull chain. Lantern top is hinged for bulb replacement. Has original wiring from what looks to be 1930's. Wiring should be tested by a electrician or local lamp shop. Pull chain works fine and retracts. Replacement mica can be found on the internet or through local stove supply.
Lantern is 10" long x 7" wide
Hangs from ceiling 22"
Chain hangs 19"
Item is in good used condition. Needs a good cleaning.