I know it's a long shot, but by chance has anyone ever run across an early zeiss 70mm X 70CM? I picked up a bare objective, NR - 14544, Cell is identical to the early astro lenes, but it doesn't have any OBJ - type marked, (AS, A, B, etc). Lens is foil spaced, fairly thin glass, and after I made a temporary OTA, (Dont laugh, good old cardboard), gives pretty good views, tad of false color, not surprising with f/10, with stars are nice dots through field edge, with slightly off center but round airy disks probably due to nature of the OTA not being optically true. looking through old zeiss catalogues I have access to, I can find no mention of this FL combo. Here's a pic of the lens in cell. Now I wish that I had picked up the old zeiss cadaver I saw on ebay a year and a half ago. but alas, hindsight truly is 20/20.
Any info would be appreciated, and will probably email Zeiss if I don't find any public info on it.