I have two lanterns/ceiling fixtures that came from the same house. They were sitting in a box alongside the road with a brass plate and two brass with foil lined type art. Someone was throwing them away. I know the houses in that neighborhood date to the 50's. The smaller one has all four pieces of glass. The larger one has one pane missing.
The small one has PAT Pend GIM 645 M.C and a copyright mark along the inside spine of each pane. The larger one states made in spain.
Large one says made in spain