1890s patent round bread loaf baking pan or steamed pudding mold, antique vintage kitchen gadget

Interesting and unusual 1890s pan for steaming / baking brown bread or puddings. This originally held two tiny mica windows (one is now broken), and latched closed for cooking.

It's made to shape two round loaves 10" x 4" in diameter. It's fairly clean overall, and would probably be fine to use if you could figure out how to use it, or find a suitable recipe.

It makes a great display piece just as it is, and can be put to use as a storage piece for utensils or other small tools when opened flat.