Hi Chuck,
I won my Bateman on a smaller auction 4-5 years ago. I will say that I was fortunate in that I didn't pay as much as recent listings found on the major auction sites. I also won a similar cut Warwick from than auction. I submitted both to SCG and both received the authentic grading. I really admire the full card with panel Warwick that you have. I am still looking for a full panel Warwick card for my collection.
Here are the links from the last four auctions that I watched that had an available Bateman.
This first one is from an auction run by Heritage in November 2018. This is the full panel, PSA 1, that Larry mentioned. It sold for $20,400 (including buyers premium). It appears that the winner was wanting to then sell the card for $30,600.
https://sports.ha.com/itm/baseball/p...umbnail-071515
The next three are from REA auctions:
the first one is a hand cut, PSA authentic, that sold for $8,700. This auction was held during the summer of 2020.
https://robertedwardauctions.com/auc...s-john-bateman
The next is from a fall 2018 auction that is hand cut, PSA authentic, and sold for $12,000
https://robertedwardauctions.com/auc...s-john-bateman
The last is from the spring 2018 and is hand cut, PSA authentic. $It sold for $ 15,600
https://robertedwardauctions.com/auc...s-john-bateman
Have you had a chance to read this 2014 article by Charles Harrison? He knows of 13 existing Bateman's. I have been in contact with Charlie (he lives in the greater Houston area, as do I). I had sent a scan of my card to him and he feels the one I have is card #14 (because my card had some staining along the bottom and the other 13 do not have any staining's).
https://sabr.org/journal/article/the...ball-card-set/
Have you been able to find the Lillis card? I was able to win a full panel ~8 years ago from Heritage.
--John