This NGC AU50 CAC hammered on GC tonight for $775, $871.88 with BP. Numismedia puts a value of $156, NGC and PCGS both say $175. It's not the O over horizontal O. I saw the possibility of a different (undocumented?) O/O RPM so bid around $200 and was outbid by Bidder8. Then Bidder7 swooped in at the last minute with a $750 bid and Bidder8's October 3 bid
still upped it to $775.
What gives? Am I missing something, or was somebody just messing around?

Edit: Auction link
https://www.greatcollections.com/Co...GC-AU-50-CAC