Before I continue, below are links showing hundreds of examples of forged Mickey Mantle baseballs, photos, etc. found on Ebay (the most dangerous place to buy autographs if you're a casual collector or impulse buyer).
The bidding for this crap is over $400.00 already; again proving just how easy it is to sell forgeries on Ebay.
With Ebay so heavily-populated with delusional autograph collectors and impulse buyers, selling forgeries is actually easier than selling authentic autographs.
Back to so-called COA.
It's from All Star Grading And Authentication Services (ASGA).
And as usual, there are no names associated with this COA.
Let's go to the ASGA website and to the submission page.
This is really laughable.
The submission page shows a forged Mickey Mantle photo.