Their lot #149:
"Unusual group of baseball cards all on a black background. Babe Ruth, Sandy Koufax, Walter Johnson, Rodgers Hornsby, Ted Williams, Lou Gehrig, Ty Cobb, Honus Wagner. Mint condition. Estimate $80-$150
These were cut from the back page of the 1971 MLBPA Stamps album from their prospective teams. Maybe worth a buck each.
Here is where the Sisler, and Hornsby came from:
https://www.ebay.com/itm/1971-Dell-S...gAAOSw6lRadlbo