To anyone who might be considering bidding on this lot: http://cgi.ebay.com/OSI-Ohio-Scientific-Challenger-1P-/160565653395?pt=LH_De faultDomain_0&hash=item2562756f93 I would suggest that you look closely at the enlarged version of the third photograph. The case does not appear to contain a full "Superboard" OSI 600 board. I'm not sure what this thing is, but it is not a normal C1P. In the fifth photo, I think you can see the cable header for the video and cassette I/O hanging loose inside the case. Bill Sudbrink