1966 Topps & Batman red baterrors
 

In 2019, Heritage Auctions sold a lot of 78 cards that featured cards from the 4th series of the 1966 Topps on the front, with Batman Red Bat backs. The 12 cards of the lot that had been graded were pictured, but none of the others were shown. If anyone has any info about these other 66 cards, I would love to hear from you. Cliff and I could use this information to help us reconstruct the 1966 4th series sheet.

In addition to the 12 Wrong backs (with Batman backs) that were shown, there were another 66 that were not graded. These were: Aker (2), Allen, Alley, Arrigo, Aspromonte, Blass, Bollo, Bowman, Boozer, Briggs, Brown, Cardenas, Causey, Chance, Christopher, Coker, Coleman/French, Crandall, Davalillo, Drabowsky, Fairly, Fisher, Freese (2), Gladding, Grote, Haller (2), Hart, Helms/Simpson, Herbel, Humphreys, Hunt, Indians, Johnson/Sanders, Jones, Keane, Keough (2), King, McBean, Nelson, Oliver, Owens, Pascual, Peterson, Pizarro (2), Regan, Reichardt (2), Ridzik, Satriano (2), Saverine (2), Segui (2), Sherry, Smith, Tiant, Valentine, Valle, Walker, Zachary.

Attachment 549044

I would try asking over at the Non-Sports Forum, linked at the upper right.