I've never seen one before and I've seen a lot of ancient muffin trays. Iron supports at the back make it one of the best antique kitchen decoration pieces I've ever seen.
In fact, I hung him on the wall of my kitchen until he found a new house. The condition is about what you expect for something as old, but it's really, well done and solid. The small outer ring is detached on the bottom and there are some bumps at the feasted trays. It's all there in the photos and I don't mind sending you more if you need it. 21 x 14 x 4. Do not hesitate to contact bleakhouse302 if you have any questions or if you need additional photos. As always, bleakhouse302 is a guaranteed satisfaction.