https://live.autographmagazine.com/f...bed-by-psa-dna
Buyer beware (see link above).
I am editing this post to be more clear about my personal experience. When I started collecting autos I bought unslabbed “signed” 1972 Topps cards from the eBay seller discussed in the link. In my case, PSA found the signatures “Likely Not Genuine.”
Scot Reader