My contact has given me a fully lodaded Heidoscop to sell in ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320051533139

Included in this lot are the following:

a.. 6x13 Heidoscop with 120 roll film back.
b.. Original camera case
c.. Two 6x13 plate holders
d.. A film pack adapter
e.. A very special custom-made 35mm film adapter for this camera.
f.. A print frame
g.. Various filters
h.. A set of Carl Zeiss Proxar close up lenses 1x
i.. Another set of Proxar close up lenses, 2x
j.. Photocopies of instructions and other useful information

The auction started at $0.01 and has no reserve.

This person has spared no expense to get the best stereo gear. He is now in
his 80s and he does very little stereo photography, and I have sold some
very good stereo cameras for him. He is also the owner of the Heidoplast
viewer and some other pieces I have in ebay right now.

I was intrigued by the 35mm film adapter. It is heavy-duty unit,
custom-made from brass. Has anyone seen anything like that before? Are
there any commercial 35mm backs for these cameras?

George Themelis