In the seventies, my Mom and I put one just like that together from a kit (I remember because it was fun to fit it all together - very cool for a little kid to do). We put it in a bedroom in our house. It was purchased 'off the shelf' and was not a designer item, but there may very well be an 'original' that ours was based on.
We think it's a fun find. Anyone else have some insight for us??