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← All feedback for William Koonce
Robert Jasper
★★★★★
Mar 20, 2023

I recently bought an Adam Sandler picture from Happy Gilmore. JSA determined piece to be inculsive. Due to William’s professionalism and posting of proofs of Sandler signing it. I was able to get JSA to reconsider their professional opinion. William is great, and highly recommend him. Also when dealing with TPA, photo proofs can only enhance findings.

Autograph from William Koonce Autograph from William Koonce
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