Not accusing anyone of anything. But these results and bids really make me scratch my head.
Between 6:46 p.m. and 7:03 p.m. (PDT) last night, all sold by Probstein:
'53 Topps #220 Satchell Paige PSA 3
Ended at $765. Previous 3's have been in the $300 - $400 range or so.
Two bidders went crazy in the closing seconds. Feedbacks of 1064 and 943
'56 Topps #33 Roberto Clemente PSA 4
Ended at $655. Previous 4's have been in the $250-300 range.
Two bidders went crazy in the closing seconds. Guess who? 1064 and 943. Bid increments are $10 at those bidding levels....and 1064 beat 943 by $7.
'59 Topps #10 Mickey Mantle PSA 4
Ended at $855. Previous 4's have been in the $350-400 range.
Two bidders went crazy in the closing seconds. Guess who? 1064 and 943. Same story with bid increments. At the last second, both bidders decided to put in a bid at more than 2x typical sell prices for this card...and those bids were coincidentally within $4 of one another.
Another '56 Clemente PSA 4
This time it sells for $712. Previous sells of $250-300.
Guess who? Our friends 1064 and 943 again.
Last up is a '59 Mantle PSA 3 that sold for $631
Recent 3's are in the $300 range. And you'll never guess what happened.
At the last minute, 1064 and 943 bid over 2x previous sells of this card (and bid within a few dollars of each other).
That was all I could find after about 5 minutes of searching. There's probably more that could easily be found. I also see coincidentally that overpriced BIN's of the Paige and Clemente in the same grade have sold since these auctions closed.