2021 Topps Heritage Baseball Forum

Found another card that is not on the Topps Heritage Checklist, low or high: 
https://www.topps.com/.../pdf/2021ToppsHeritageChecklist.pdf
https://www.topps.com/.../2021ToppsHeritageHighNumber.pdf

It has the Topps Certified Autograph on the front, so it's not an IP auto.
Not listed in the Oversized 1972 Topps Baseball Autographs Checklist 
And has the same card # OB-GT as the regular oversized box topper