The house is about 2 1/2 feet tall. I believe it originally opened in the front, but was updated somewhere along the line and now has 3 doors cut in the back of the house. The yellow molding that goes around 3 sides of the house must have been added when this is done. Perhaps the front of the house was too damaged to allow the door to open and so it was stabilized.
When it was restored a new base was created for it and it houses a small electric transformer which powers a bulb on each floor. (The new base ends after the bottom yellow molding and includes the stairs)
When I first saw the house it was set up as a grocery store, with a wonderful 3 shelf unit which had cakes and groceries on it, and some wonderful old furniture and dolls in the upstairs rooms. By the time I was able to purchase it, all of the interior furnishings had been sold. As I went to retrieve it from its location on the 2nd floor of the museum, I noticed the shelving unit that had been in the house had fallen out and was under a nearby chair! I scooped it up and restored it to the house, though I have no way of knowing if the shelves were original to the house or not. But they fit perfectly.
I have done a lot of research and finally found a very similar house in the museum in the Hague in The Netherlands. (link at the bottom of this post). That house is only 2 stories but it is also arranged as a Grocery store on the first floor and if you look VERY closely at the picture of it on the Museum's website, you can see some shelves through the door. So I am content in my belief that the shelves are original to the house.
As I have several Grocery stores in my collection, and I also have a number of vintage and antique potted plants, I have decided to set the first floor shop up as a florist shop for now.
There is very minimal furniture inside. I added a metal fireplace and some beds and will continue to work on furnishing the house with items from the appropriate era as I find them.
Here is the link to the similar house in the Hague Museum in Holland and a picture of that house.
Don't forget to look closely at the picture on the site, and zoom in to see the faint shelves though the window!