That is very nice. You see them nearly new in the box like that once and a while. That version is the common one with the light blue color. The only parts of that set that I don't have is the manual and the metal wall bracket and the box. The box changed a number of times and that looks like a combination of the early plain box (which I do have) and the later fully printed box.
As you guys may remember I like this model line a great deal and had a fair sized thread started on the topic. I am still looking for more odd variations on the design but have not added any to my collection lately.
