PSA/DNA, a division of publicly held Collectors Universe , is the world's leading and largest third-party sports card authentication service. Spence's years of expertise and knowledge in the trade ...
The autograph authentication company that has certified more than 1,000 jerseys, photos, mini helmets and other items as bearing the valid signature of Florida State quarterback Jameis Winston ...
SANTA ANA, Calif., Feb. 2 (UPI) -- Footballs used in the upcoming Super Bowl game will be marked with synthetic DNA to foil memorabilia counterfeiting, company officials say. The sports memorabilia ...
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