I do not know despite doing a bit of digging with no success.
I see one in this collection: https://pcgs.com/SetRegistry/alltimeset/79
And the PR70CA is in this set: https://pcgs.com/setregistry/alltimeset/21621
They have consecutive certificate numbers
7714420 and 7714421
Thanks for your great detective work
Yes good job @dbldie55 !
Amen. It will take a lot of praying for the owner to consider selling.
Thanks to all