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Collectors Universe Inc. is an American company formed in 1986, now based in Santa Ana, California, which provides third-party authentication and grading services to collectors, retail buyers and sellers of collectibles. Its authentication services focus on coins, trading cards, sports memorabilia, and autographs.
PSA was launched in July 1991 by David Hall, owner of the coin grading company Professional Coin Grading Service (PCGS), to serve collectors as a third-party card grader. [1] At the outset, the business faced difficulties owing to a limited demand from collectors who sought card grading services. [ 2 ]
Ace Authentic, based in Duluth, Georgia, [1] manufactures tennis trading cards and memorabilia, and sells other items such as photographs and posters. [2] They have partnered with more than 350 active tennis players and legends to provide items, such as autographs and game worn material, not found through other dealers.
The forged items included "cut" autographs with the forged signatures of individuals like deceased US presidents Abraham Lincoln, George Washington, Theodore Roosevelt and John F. Kennedy. [ 11 ] In 2000, five members of the Marino family and 20 other individuals pled guilty to charges related to the forgery ring. [ 15 ]
These size 13 mid-top sneakers were sold with the original laces, Upper Deck Authentication on the signatures and a Chicago Bulls Letter of Authenticity. They were auctioned by Christie’s in 2020.
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Numismatic Guaranty Company (NGC) is an international third-party coin grading and certification service based in Sarasota, Florida. It has certified more than 60 million coins. NGC certification consists of authentication, grading, attribution, and encapsulation in clear plastic holders.
Standish served as Vice President of Professional Sports Authenticator (PSA) and launched PSA/DNA First autograph Sammy Sosa- authentication from 1996 to 2001. During that time, Standish authenticated a number of high-profile sports items including Mark McGwire ’s 70th home run ball [ 13 ] and Henry Aaron ’s 715th home run bat and ball. [ 14 ]