I was given this "Visible Mail Box" by K's parents when his dad was cleaning out the family home (an 1830 Greek Revival style home in the Finger Lakes area of NY, which by the way will be for sale sometime soon. It is complete with hand blown rose glass windows). The house was filled to the brim with treasures. I got to choose quite a few to bring home and this interesting mail box was one of them. I think it would have been mounted on a post or the side of a building and the postman put the mail in the opening on top. The mail was then removed from the bottom by the receiver. I have a feeling it might see new life as a terrarium in the near future. Isn't it interesting? Has anyone ever seen one of these before?