I've never seen a lantern like that, and it's strange how you have to open the flaps. That seems like it would be tedious, unless maybe it's an early example of a spy's secret light? Yeah probably not. But the two handles on the sides are similar to those found on some inspector lamps, which guys would carry around at night to inspect whatever, be it a train or a boat.
But it just doesn't seem industrial related because of the fancy designs.
Anyways, good luck, hope someone can give you a solid ID!