Navigating the trading card and sports memorabilia hobby ... but should I get my best stuff graded? And Beckett or PSA? — Martin Oppegaard Grading has become a major component of the trading ...
If you're an NBA card collector, here is your dream team. Professional Sports Authenticator (PSA ... along with the grading ...
Online marketplace eBay is adding a new feature that will allow customers to send eligible raw card purchases directly to PSA ...