Professional Sports Authenticator was barely a gleam in the eye of its founders when the hobby went through its explosive growth of the 1980s and early 90s. Since then, the company has become an industry giant, authenticating millions of cards and collectibles with a declared value of over $1 billion.
Others will get the nod of approval or grade that can add significant value once back in the hands of the customer.
Born in the 1990s out of collector concerns about forgery and counterfeiting that had run rampant, PSA is part of Collectors Universe, a publicly traded company.
The Orange County Register has a look at the business side of the company and some images showing some of the items that have passed authentication and others that haven't.
Read it here.