For those interested in a little more history of this set I have added some information from documents from a Philco engineer to my web site at:
http://www.myvintagetv.com/philco_tv123.htm
Presently only four confirmed complete sets are known, one unconfirmed, and two chassis only. If you know of any sets out there I would appreciate any information, I am building a database to try and confirm the story that only 500 of these were produced.
Also I have about a thousand of pages of documentation about the Philco "Apple Receiver" project, internal memos, engineering reports, and schematics, covering 1950 to 1960. I have listed a bibliography of the documents at:
http://www.myvintagetv.com/philco_apple_tube.htm
Many thanks to DaveA for saving these from the landfill.
I hope to scan the documents and make them available to download from my site or make them available on a CD due to the size of the scans, stay tuned.
Chuck