The Juniorsystem model (part # 8 100 080) had a very short lifespan and there is no known photograph of it. It did not appear in any known brochure or catalog either. It appeared first in the April 15th, 1969 price list but was already gone by the next issued price list of July 1st, 1969.
The same part # was reused for the Buchlabor model and it appeared for the first time in the November 1st, 1969 price list.
What conclusion can we draw from these facts? The Juniorsystem was perhaps the working name for what would become the Buchlabor model.