Antique Copper Exit Sign with White Letters - Old Movie Theater ? For Sale

Up for sale is this old, antique, copper exit sign. It would have had a light inside and the white letters would have lit up. We don't know if they are that - I - stuff - V - that - O - - R - won't - Y - let you list or plastic but they don't look plastic-y to me. It has wonderful patina and age to it. I anticipate this is from an old building, perhaps an old movie theater. It looks pre-WWII to me. It has one chain to hang it from, the other side would need some help. It's super cool but needs care in handling. We recommend picking it up locally.
It measures16" wide at the top by 9" high by 3 1/2" thick at the top.