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If you haven't seen these past sYc threads, this link includes pics of 667781 Bruce posted from the 2016 Mecum sale...
https://www.yenko.net/forum/showthread.php?t=135999
Also, another Member posted he had Original Owner Paperwork for a Red/Black Hat Ed Stinn 9561 car, hopefully the docs were reunited but especially if the same one, he may know where it is now...
https://www.yenko.net/forum/showthread.php?t=99251
I like how you're going about acquiring a Red 9561 car, best of luck w/ your quest!
~ Pete
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