At this moment, I am awaiting responses from the Marantz company and NASA. I am still looking for Hamish Lindsay's email adress. I have sent a photo which just might show a 9120 to Marantz, so I can get conformation about that photo from the company that built the 9120. Personally, I seriously doubt that a 9120 is on any photo I have found up to today.
Edit: and i have mailed Honeysuckle's
Colin Mackellar. With the same question, and I asked him whether he could pass the question to Hamish Lindsay.
With all these questions asked, at least some info should turn up

.
Any members here who can contribute anything: please do so!