Amazingly, what appeared to be a NOS (or nearly so) Protelgram kit (minus the CRT mounting hardware and yoke) appeared on ebay a couple weeks ago.
I ended up paying a bit for it, but I figured it could be a very long time before something similar showed up.
I especially wanted the optical assembly since my corrective lens is cloudy and front surface mirrors stained.
There is some surface corrosion and chipped paint but otherwise looks unused or barely used.
