This die box is one of the finest I have seen. You can tell by holding it and looking at it. The bottom is finished jut like the top. All parts are stamped number 18. The mahogany finish is exquisite as is the patina of the overall box. I would swear this is Thayer but i have no knowledge of them making this type design. There is no double door feature.
If you are looking for quality, this would be it. if you do not agree when you receive it, send it back. I will pay shipping both ways. Really there is no risk for either of us, This is a great box!