Opinions expressed by Forbes Contributors are their own. Dave Knox is a writer focused on startups, tech, innovation, and CPG. PSA, which authenticates and grades collectibles, has seen a surge in ...
Consider that last season’s NBA Rookie of the Year Victor Wembanyama already has 2,505 card types and nearly 400,000 graded, ...
Ultimately, the best cards to collect are ... There are a number of grading companies, each with their own unique grading scales, but Professional Sports Authenticator (PSA) is by far the largest ...
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